80644927086 has 24 divisors (see below), whose sum is σ = 174735998424. Its totient is φ = 26880823440.

The previous prime is 80644927079. The next prime is 80644927133. The reversal of 80644927086 is 68072944608.

80644927086 is a `hidden beast` number, since 8 + 0 + 6 + 4 + 492 + 70 + 86 = 666.

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 11 ways as a sum of consecutive naturals, for example, 948165 + ... + 1029711.

It is an arithmetic number, because the mean of its divisors is an integer number (7280666601).

Almost surely, 2^80644927086 is an apocalyptic number.

80644927086 is an abundant number, since it is smaller than the sum of its proper divisors (94091071338).

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

80644927086 is a wasteful number, since it uses less digits than its factorization.

80644927086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136496 (or 136493 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 80644927086 in words is "eighty billion, six hundred forty-four million, nine hundred twenty-seven thousand, eighty-six".