309912052086 has 96 divisors (see below), whose sum is σ = 826552516608. Its totient is φ = 81723142080.

The previous prime is 309912052063. The next prime is 309912052117. The reversal of 309912052086 is 680250219903.

309912052086 is a `hidden beast` number, since 30 + 9 + 9 + 12 + 0 + 520 + 86 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21232651 + ... + 21247241.

It is an arithmetic number, because the mean of its divisors is an integer number (8609922048).

Almost surely, 2^309912052086 is an apocalyptic number.

309912052086 is an abundant number, since it is smaller than the sum of its proper divisors (516640464522).

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

309912052086 is a wasteful number, since it uses less digits than its factorization.

309912052086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27586 (or 27583 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 309912052086 in words is "three hundred nine billion, nine hundred twelve million, fifty-two thousand, eighty-six".