72546570764 has 6 divisors (see below), whose sum is σ = 126956498844. Its totient is φ = 36273285380.

The previous prime is 72546570757. The next prime is 72546570821. The reversal of 72546570764 is 46707564527.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9068321342 + ... + 9068321349.

It is an arithmetic number, because the mean of its divisors is an integer number (21159416474).

Almost surely, 2^72546570764 is an apocalyptic number.

It is an amenable number.

72546570764 is a deficient number, since it is larger than the sum of its proper divisors (54409928080).

72546570764 is a wasteful number, since it uses less digits than its factorization.

72546570764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18136642695 (or 18136642693 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 72546570764 in words is "seventy-two billion, five hundred forty-six million, five hundred seventy thousand, seven hundred sixty-four".