31488634572 has 24 divisors (see below), whose sum is σ = 73478271216. Its totient is φ = 10495527168.

The previous prime is 31488634543. The next prime is 31488634601. The reversal of 31488634572 is 27543688413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31488634543) and next prime (31488634601).

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, 127368 + ... + 281424.

It is an arithmetic number, because the mean of its divisors is an integer number (3061594634).

Almost surely, 2^31488634572 is an apocalyptic number.

It is an amenable number.

31488634572 is an abundant number, since it is smaller than the sum of its proper divisors (41989636644).

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

31488634572 is a wasteful number, since it uses less digits than its factorization.

31488634572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171097 (or 171095 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 51.

The spelling of 31488634572 in words is "thirty-one billion, four hundred eighty-eight million, six hundred thirty-four thousand, five hundred seventy-two".