72996915628 has 192 divisors, whose sum is σ = 164440864000. Its totient is φ = 28332944640.

The previous prime is 72996915617. The next prime is 72996915647. The reversal of 72996915628 is 82651969927.

Its product of digits (29393280) is a multiple of the sum of its prime divisors (480).

It is a self number, because there is not a number n which added to its sum of digits gives 72996915628.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183871126 + ... + 183871522.

Almost surely, 2^72996915628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72996915628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82220432000).

72996915628 is an abundant number, since it is smaller than the sum of its proper divisors (91443948372).

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

72996915628 is a wasteful number, since it uses less digits than its factorization.

72996915628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 480 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 64.

The spelling of 72996915628 in words is "seventy-two billion, nine hundred ninety-six million, nine hundred fifteen thousand, six hundred twenty-eight".