22147391448 has 96 divisors (see below), whose sum is σ = 73824660000. Its totient is φ = 5841068544.

The previous prime is 22147391447. The next prime is 22147391471. The reversal of 22147391448 is 84419374122.

22147391448 is a `hidden beast` number, since 2 + 214 + 7 + 391 + 4 + 48 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147391447) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1683573 + ... + 1696676.

It is an arithmetic number, because the mean of its divisors is an integer number (769006875).

Almost surely, 2^22147391448 is an apocalyptic number.

22147391448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22147391448 is an abundant number, since it is smaller than the sum of its proper divisors (51677268552).

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

22147391448 is a wasteful number, since it uses less digits than its factorization.

22147391448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380281 (or 3380274 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

It can be divided in two parts, 22147 and 391448, that added together give a triangular number (413595 = T₉₀₉).

The spelling of 22147391448 in words is "twenty-two billion, one hundred forty-seven million, three hundred ninety-one thousand, four hundred forty-eight".