31432953272 has 64 divisors (see below), whose sum is σ = 67875192000. Its totient is φ = 13367900160.

The previous prime is 31432953271. The next prime is 31432953281. The reversal of 31432953272 is 27235923413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432953271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3950354 + ... + 3958302.

It is an arithmetic number, because the mean of its divisors is an integer number (1060549875).

Almost surely, 2^31432953272 is an apocalyptic number.

It is an amenable number.

31432953272 is an abundant number, since it is smaller than the sum of its proper divisors (36442238728).

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

31432953272 is a wasteful number, since it uses less digits than its factorization.

31432953272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8496 (or 8492 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The spelling of 31432953272 in words is "thirty-one billion, four hundred thirty-two million, nine hundred fifty-three thousand, two hundred seventy-two".