2991454344648 has 768 divisors, whose sum is σ = 10747244851200. Its totient is φ = 728766720000.

The previous prime is 2991454344631. The next prime is 2991454344677. The reversal of 2991454344648 is 8464434541992.

2991454344648 is a `hidden beast` number, since 2 + 9 + 9 + 1 + 4 + 543 + 4 + 46 + 48 = 666.

It is a super-2 number, since 2×2991454344648² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 191 ways as a sum of consecutive naturals, for example, 1403778543 + ... + 1403780673.

It is an arithmetic number, because the mean of its divisors is an integer number (13993808400).

Almost surely, 2^{2991454344648} is an apocalyptic number.

2991454344648 is a gapful number since it is divisible by the number (28) 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 2991454344648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5373622425600).

2991454344648 is an abundant number, since it is smaller than the sum of its proper divisors (7755790506552).

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

2991454344648 is a wasteful number, since it uses less digits than its factorization.

2991454344648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2387 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 2991454344648 in words is "two trillion, nine hundred ninety-one billion, four hundred fifty-four million, three hundred forty-four thousand, six hundred forty-eight".