31083805636 has 27 divisors (see below), whose sum is σ = 58911579783. Its totient is φ = 14344256160.

The previous prime is 31083805633. The next prime is 31083805651. The reversal of 31083805636 is 63650838013.

The square root of 31083805636 is 176306.

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

It can be written as a sum of positive squares in 4 ways, for example, as 6038844100 + 25044961536 = 77710^2 + 158256^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31083805592 and 31083805601.

It is not an unprimeable number, because it can be changed into a prime (31083805631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4580566 + ... + 4587346.

Almost surely, 2^31083805636 is an apocalyptic number.

31083805636 is the 176306-th square number.

It is an amenable number.

31083805636 is a deficient number, since it is larger than the sum of its proper divisors (27827774147).

31083805636 is an frugal number, since it uses more digits than its factorization.

31083805636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592 (or 6796 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 31083805636 in words is "thirty-one billion, eighty-three million, eight hundred five thousand, six hundred thirty-six".