31232470688 has 12 divisors (see below), whose sum is σ = 61488926730. Its totient is φ = 15616235328.

The previous prime is 31232470679. The next prime is 31232470723. The reversal of 31232470688 is 88607423213.

It can be written as a sum of positive squares in only one way, i.e., 22125967504 + 9106503184 = 148748^2 + 95428^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488007323 + ... + 488007386.

Almost surely, 2^31232470688 is an apocalyptic number.

It is an amenable number.

31232470688 is a deficient number, since it is larger than the sum of its proper divisors (30256456042).

31232470688 is an equidigital number, since it uses as much as digits as its factorization.

31232470688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976014719 (or 976014711 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 31232470688 in words is "thirty-one billion, two hundred thirty-two million, four hundred seventy thousand, six hundred eighty-eight".