15972642624 has 28 divisors (see below), whose sum is σ = 42260950784. Its totient is φ = 5324214144.

The previous prime is 15972642613. The next prime is 15972642683. The reversal of 15972642624 is 42624627951.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41595232 + ... + 41595615.

Almost surely, 2^15972642624 is an apocalyptic number.

It is an amenable number.

15972642624 is an abundant number, since it is smaller than the sum of its proper divisors (26288308160).

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

15972642624 is an equidigital number, since it uses as much as digits as its factorization.

15972642624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83190862 (or 83190852 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 15972642624 in words is "fifteen billion, nine hundred seventy-two million, six hundred forty-two thousand, six hundred twenty-four".