30947912668 has 6 divisors (see below), whose sum is σ = 54158847176. Its totient is φ = 15473956332.

The previous prime is 30947912641. The next prime is 30947912719. The reversal of 30947912668 is 86621974903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3868489080 + ... + 3868489087.

Almost surely, 2^30947912668 is an apocalyptic number.

It is an amenable number.

30947912668 is a deficient number, since it is larger than the sum of its proper divisors (23210934508).

30947912668 is a wasteful number, since it uses less digits than its factorization.

30947912668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736978171 (or 7736978169 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 30947912668 in words is "thirty billion, nine hundred forty-seven million, nine hundred twelve thousand, six hundred sixty-eight".