1544294449152 has 1080 divisors, whose sum is σ = 5739291302472. Its totient is φ = 396361728000.

The previous prime is 1544294449129. The next prime is 1544294449171. The reversal of 1544294449152 is 2519444924451.

It is a happy number.

1544294449152 is a `hidden beast` number, since 1 + 5 + 4 + 42 + 9 + 4 + 449 + 152 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 100605689856 + 1443688759296 = 317184^2 + 1201536^2 .

It is a super-2 number, since 2×1544294449152² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3851108152 + ... + 3851108552.

Almost surely, 2^{1544294449152} is an apocalyptic number.

1544294449152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1544294449152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2869645651236).

1544294449152 is an abundant number, since it is smaller than the sum of its proper divisors (4194996853320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1544294449152 is a wasteful number, since it uses less digits than its factorization.

1544294449152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 467 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

It can be divided in two parts, 15442944 and 49152, that added together give a square (15492096 = 3936²).

The spelling of 1544294449152 in words is "one trillion, five hundred forty-four billion, two hundred ninety-four million, four hundred forty-nine thousand, one hundred fifty-two".