30981199756 has 12 divisors (see below), whose sum is σ = 58387645792. Its totient is φ = 14299015248.

The previous prime is 30981199747. The next prime is 30981199787. The reversal of 30981199756 is 65799118903.

It is a self number, because there is not a number n which added to its sum of digits gives 30981199756.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297896100 + ... + 297896203.

Almost surely, 2^30981199756 is an apocalyptic number.

It is an amenable number.

30981199756 is a deficient number, since it is larger than the sum of its proper divisors (27406446036).

30981199756 is a wasteful number, since it uses less digits than its factorization.

30981199756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595792320 (or 595792318 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 30981199756 in words is "thirty billion, nine hundred eighty-one million, one hundred ninety-nine thousand, seven hundred fifty-six".