31385929704 has 32 divisors (see below), whose sum is σ = 79635945120. Its totient is φ = 10305827136.

The previous prime is 31385929693. The next prime is 31385929711. The reversal of 31385929704 is 40792958313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9757699 + ... + 9760914.

It is an arithmetic number, because the mean of its divisors is an integer number (2488623285).

Almost surely, 2^31385929704 is an apocalyptic number.

It is an amenable number.

31385929704 is an abundant number, since it is smaller than the sum of its proper divisors (48250015416).

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

31385929704 is a wasteful number, since it uses less digits than its factorization.

31385929704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518689 (or 19518685 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 31385929704 in words is "thirty-one billion, three hundred eighty-five million, nine hundred twenty-nine thousand, seven hundred four".