31086712392512 has 168 divisors, whose sum is σ = 78431263089408. Its totient is φ = 12134687846400.

The previous prime is 31086712392511. The next prime is 31086712392521. The reversal of 31086712392512 is 21529321768013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31086712392511) 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, 7752314 + ... + 11057657.

Almost surely, 2^{31086712392512} is an apocalyptic number.

31086712392512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31086712392512 is an abundant number, since it is smaller than the sum of its proper divisors (47344550696896).

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

31086712392512 is a wasteful number, since it uses less digits than its factorization.

31086712392512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18810045 (or 18810028 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 31086712392512 in words is "thirty-one trillion, eighty-six billion, seven hundred twelve million, three hundred ninety-two thousand, five hundred twelve".