31536077056 has 81 divisors (see below), whose sum is σ = 69260481633. Its totient is φ = 14320373760.

The previous prime is 31536077033. The next prime is 31536077093. The reversal of 31536077056 is 65077063513.

It is a happy number.

The square root of 31536077056 is 177584.

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., 9679411456 + 21856665600 = 98384^2 + 147840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31254280 + ... + 31255288.

Almost surely, 2^31536077056 is an apocalyptic number.

31536077056 is the 177584-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31536077056

31536077056 is an abundant number, since it is smaller than the sum of its proper divisors (37724404577).

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

31536077056 is an frugal number, since it uses more digits than its factorization.

31536077056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 31536077056 in words is "thirty-one billion, five hundred thirty-six million, seventy-seven thousand, fifty-six".