82572811568 has 20 divisors (see below), whose sum is σ = 172291347648. Its totient is φ = 38110528320.

The previous prime is 82572811547. The next prime is 82572811609. The reversal of 82572811568 is 86511827528.

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, 198492128 + ... + 198492543.

Almost surely, 2^82572811568 is an apocalyptic number.

It is an amenable number.

82572811568 is an abundant number, since it is smaller than the sum of its proper divisors (89718536080).

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

82572811568 is a wasteful number, since it uses less digits than its factorization.

82572811568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396984692 (or 396984686 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 53.

The spelling of 82572811568 in words is "eighty-two billion, five hundred seventy-two million, eight hundred eleven thousand, five hundred sixty-eight".