31252357272 has 32 divisors (see below), whose sum is σ = 78582527280. Its totient is φ = 10357234560.

The previous prime is 31252357247. The next prime is 31252357313. The reversal of 31252357272 is 27275325213.

It is a self number, because there is not a number n which added to its sum of digits gives 31252357272.

It is a congruent number.

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, 3759379 + ... + 3767682.

Almost surely, 2^31252357272 is an apocalyptic number.

It is an amenable number.

31252357272 is an abundant number, since it is smaller than the sum of its proper divisors (47330170008).

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

31252357272 is a wasteful number, since it uses less digits than its factorization.

31252357272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527243 (or 7527239 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The spelling of 31252357272 in words is "thirty-one billion, two hundred fifty-two million, three hundred fifty-seven thousand, two hundred seventy-two".