30975944168 has 16 divisors (see below), whose sum is σ = 62547579780. Its totient is φ = 14296589568.

The previous prime is 30975944149. The next prime is 30975944173. The reversal of 30975944168 is 86144957903.

It can be written as a sum of positive squares in 2 ways, for example, as 30561333124 + 414611044 = 174818^2 + 20362^2 .

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, 148922705 + ... + 148922912.

Almost surely, 2^30975944168 is an apocalyptic number.

It is an amenable number.

30975944168 is an abundant number, since it is smaller than the sum of its proper divisors (31571635612).

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

30975944168 is a wasteful number, since it uses less digits than its factorization.

30975944168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297845636 (or 297845632 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 30975944168 in words is "thirty billion, nine hundred seventy-five million, nine hundred forty-four thousand, one hundred sixty-eight".