80972697364 has 12 divisors (see below), whose sum is σ = 152602391284. Its totient is φ = 37372014144.

The previous prime is 80972697353. The next prime is 80972697371. The reversal of 80972697364 is 46379627908.

It can be written as a sum of positive squares in 2 ways, for example, as 19323780100 + 61648917264 = 139010^2 + 248292^2 .

It is a congruent number.

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, 778583577 + ... + 778583680.

Almost surely, 2^80972697364 is an apocalyptic number.

It is an amenable number.

80972697364 is a deficient number, since it is larger than the sum of its proper divisors (71629693920).

80972697364 is a wasteful number, since it uses less digits than its factorization.

80972697364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557167274 (or 1557167272 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 80972697364 in words is "eighty billion, nine hundred seventy-two million, six hundred ninety-seven thousand, three hundred sixty-four".