80991092184 has 64 divisors (see below), whose sum is σ = 205965072000. Its totient is φ = 26532299520.

The previous prime is 80991092167. The next prime is 80991092191. The reversal of 80991092184 is 48129019908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8790172 + ... + 8799380.

It is an arithmetic number, because the mean of its divisors is an integer number (3218204250).

Almost surely, 2^80991092184 is an apocalyptic number.

It is an amenable number.

80991092184 is an abundant number, since it is smaller than the sum of its proper divisors (124973979816).

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

80991092184 is a wasteful number, since it uses less digits than its factorization.

80991092184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15488 (or 15484 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 51.

The spelling of 80991092184 in words is "eighty billion, nine hundred ninety-one million, ninety-two thousand, one hundred eighty-four".