31307055844 has 9 divisors (see below), whose sum is σ = 54787967017. Its totient is φ = 15653350984.

The previous prime is 31307055827. The next prime is 31307055883. The reversal of 31307055844 is 44855070313.

The square root of 31307055844 is 176938.

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., 29296430244 + 2010625600 = 171162^2 + 44840^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31307055797 and 31307055806.

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, 309642 + ... + 398110.

Almost surely, 2^31307055844 is an apocalyptic number.

31307055844 is the 176938-th square number.

It is an amenable number.

31307055844 is a deficient number, since it is larger than the sum of its proper divisors (23480911173).

31307055844 is an frugal number, since it uses more digits than its factorization.

31307055844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176942 (or 88471 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 31307055844 in words is "thirty-one billion, three hundred seven million, fifty-five thousand, eight hundred forty-four".