31712439032 has 16 divisors (see below), whose sum is σ = 59502338640. Its totient is φ = 15845148736.

The previous prime is 31712439019. The next prime is 31712439037. The reversal of 31712439032 is 23093421713.

It is a junction number, because it is equal to n+sod(n) for n = 31712438983 and 31712439001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31712439037) 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 3 ways as a sum of consecutive naturals, for example, 1371668 + ... + 1394595.

It is an arithmetic number, because the mean of its divisors is an integer number (3718896165).

Almost surely, 2^31712439032 is an apocalyptic number.

It is an amenable number.

31712439032 is a deficient number, since it is larger than the sum of its proper divisors (27789899608).

31712439032 is a wasteful number, since it uses less digits than its factorization.

31712439032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767702 (or 2767698 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 31712439032 in words is "thirty-one billion, seven hundred twelve million, four hundred thirty-nine thousand, thirty-two".