72792490568 has 36 divisors (see below), whose sum is σ = 158780987235. Its totient is φ = 31194492336.

The previous prime is 72792490513. The next prime is 72792490579. The reversal of 72792490568 is 86509429727.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 36396245284 + 36396245284 = 190778^2 + 190778^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=190778.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5334971 + ... + 5348597.

Almost surely, 2^72792490568 is an apocalyptic number.

It is an amenable number.

72792490568 is an abundant number, since it is smaller than the sum of its proper divisors (85988496667).

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

72792490568 is an frugal number, since it uses more digits than its factorization.

72792490568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27274 (or 13636 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 72792490568 in words is "seventy-two billion, seven hundred ninety-two million, four hundred ninety thousand, five hundred sixty-eight".