31912070919792 has 160 divisors (see below), whose sum is σ = 97120467320832. Its totient is φ = 8840340287232.

The previous prime is 31912070919779. The next prime is 31912070919881. The reversal of 31912070919792 is 29791907021913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7753128 + ... + 11132615.

Almost surely, 2^{31912070919792} is an apocalyptic number.

It is an amenable number.

31912070919792 is an abundant number, since it is smaller than the sum of its proper divisors (65208396401040).

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

31912070919792 is a wasteful number, since it uses less digits than its factorization.

31912070919792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18885915 (or 18885909 counting only the distinct ones).

The product of its (nonzero) digits is 3857868, while the sum is 60.

The spelling of 31912070919792 in words is "thirty-one trillion, nine hundred twelve billion, seventy million, nine hundred nineteen thousand, seven hundred ninety-two".