72746726572 has 12 divisors (see below), whose sum is σ = 137099600176. Its totient is φ = 33575412240.

The previous prime is 72746726567. The next prime is 72746726581. The reversal of 72746726572 is 27562764727.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 699487704 + ... + 699487807.

Almost surely, 2^72746726572 is an apocalyptic number.

It is an amenable number.

72746726572 is a deficient number, since it is larger than the sum of its proper divisors (64352873604).

72746726572 is a wasteful number, since it uses less digits than its factorization.

72746726572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398975528 (or 1398975526 counting only the distinct ones).

The product of its digits is 13829760, while the sum is 55.

The spelling of 72746726572 in words is "seventy-two billion, seven hundred forty-six million, seven hundred twenty-six thousand, five hundred seventy-two".