30986813925912 has 64 divisors (see below), whose sum is σ = 84191414076000. Its totient is φ = 9446932675584.

The previous prime is 30986813925889. The next prime is 30986813925923. The reversal of 30986813925912 is 21952931868903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455547237 + ... + 455615252.

Almost surely, 2^{30986813925912} is an apocalyptic number.

It is an amenable number.

30986813925912 is an abundant number, since it is smaller than the sum of its proper divisors (53204600150088).

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

30986813925912 is a wasteful number, since it uses less digits than its factorization.

30986813925912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911162620 (or 911162616 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 66.

The spelling of 30986813925912 in words is "thirty trillion, nine hundred eighty-six billion, eight hundred thirteen million, nine hundred twenty-five thousand, nine hundred twelve".