31297855744 has 27 divisors (see below), whose sum is σ = 62479104877. Its totient is φ = 15647512576.

The previous prime is 31297855739. The next prime is 31297855769. The reversal of 31297855744 is 44755879213.

The square root of 31297855744 is 176912.

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., 5861433600 + 25436422144 = 76560^2 + 159488^2 .

It is a Duffinian number.

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, 2825064 + ... + 2836120.

Almost surely, 2^31297855744 is an apocalyptic number.

31297855744 is the 176912-nd square number.

It is an amenable number.

31297855744 is a deficient number, since it is larger than the sum of its proper divisors (31181249133).

31297855744 is an frugal number, since it uses more digits than its factorization.

31297855744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22130 (or 11059 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 31297855744 in words is "thirty-one billion, two hundred ninety-seven million, eight hundred fifty-five thousand, seven hundred forty-four".