31327584016 has 15 divisors (see below), whose sum is σ = 60698565781. Its totient is φ = 15663438016.

The previous prime is 31327583953. The next prime is 31327584061. The reversal of 31327584016 is 61048572313.

The square root of 31327584016 is 176996.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 407878416 + 30919705600 = 20196^2 + 175840^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31327584016.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 685860 + ... + 730108.

Almost surely, 2^31327584016 is an apocalyptic number.

31327584016 is the 176996-th square number.

It is an amenable number.

31327584016 is a deficient number, since it is larger than the sum of its proper divisors (29370981765).

31327584016 is an frugal number, since it uses more digits than its factorization.

31327584016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88506 (or 44251 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 31327584016 in words is "thirty-one billion, three hundred twenty-seven million, five hundred eighty-four thousand, sixteen".