80990972962 has 32 divisors (see below), whose sum is σ = 124244233344. Its totient is φ = 39589804800.

The previous prime is 80990972947. The next prime is 80990972963. The reversal of 80990972962 is 26927909908.

It is a self number, because there is not a number n which added to its sum of digits gives 80990972962.

It is not an unprimeable number, because it can be changed into a prime (80990972963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4936012 + ... + 4952392.

It is an arithmetic number, because the mean of its divisors is an integer number (3882632292).

Almost surely, 2^80990972962 is an apocalyptic number.

80990972962 is a deficient number, since it is larger than the sum of its proper divisors (43253260382).

80990972962 is a wasteful number, since it uses less digits than its factorization.

80990972962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 80990972962 in words is "eighty billion, nine hundred ninety million, nine hundred seventy-two thousand, nine hundred sixty-two".