31372710512 has 80 divisors (see below), whose sum is σ = 72272124288. Its totient is φ = 13004701440.

The previous prime is 31372710463. The next prime is 31372710533. The reversal of 31372710512 is 21501727313.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 107303 + ... + 272505.

Almost surely, 2^31372710512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31372710512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36136062144).

31372710512 is an abundant number, since it is smaller than the sum of its proper divisors (40899413776).

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

31372710512 is a wasteful number, since it uses less digits than its factorization.

31372710512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165318 (or 165312 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The spelling of 31372710512 in words is "thirty-one billion, three hundred seventy-two million, seven hundred ten thousand, five hundred twelve".