80913000636 has 72 divisors (see below), whose sum is σ = 220320841104. Its totient is φ = 24889789440.

The previous prime is 80913000631. The next prime is 80913000647. The reversal of 80913000636 is 63600031908.

It is a happy number.

80913000636 is a `hidden beast` number, since 8 + 0 + 9 + 13 + 0 + 0 + 0 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80913000636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80913000631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1950220 + ... + 1991276.

It is an arithmetic number, because the mean of its divisors is an integer number (3060011682).

Almost surely, 2^80913000636 is an apocalyptic number.

It is an amenable number.

80913000636 is an abundant number, since it is smaller than the sum of its proper divisors (139407840468).

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

80913000636 is a wasteful number, since it uses less digits than its factorization.

80913000636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45291 (or 45286 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 80913000636 in words is "eighty billion, nine hundred thirteen million, six hundred thirty-six", and thus it is an aban number.