30815648925 has 12 divisors (see below), whose sum is σ = 50948539680. Its totient is φ = 16435012720.

The previous prime is 30815648887. The next prime is 30815648939. The reversal of 30815648925 is 52984651803.

It is not a de Polignac number, because 30815648925 - 2¹⁴ = 30815632541 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205437585 + ... + 205437734.

It is an arithmetic number, because the mean of its divisors is an integer number (4245711640).

Almost surely, 2^30815648925 is an apocalyptic number.

It is an amenable number.

30815648925 is a deficient number, since it is larger than the sum of its proper divisors (20132890755).

30815648925 is a wasteful number, since it uses less digits than its factorization.

30815648925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410875332 (or 410875327 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 30815648925 in words is "thirty billion, eight hundred fifteen million, six hundred forty-eight thousand, nine hundred twenty-five".