30812949916 has 12 divisors (see below), whose sum is σ = 61625899888. Its totient is φ = 13205549952.

The previous prime is 30812949863. The next prime is 30812949917. The reversal of 30812949916 is 61994921803.

30812949916 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30812949917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550231221 + ... + 550231276.

Almost surely, 2^30812949916 is an apocalyptic number.

It is an amenable number.

30812949916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30812949916 is a wasteful number, since it uses less digits than its factorization.

30812949916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100462508 (or 1100462506 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 30812949916 in words is "thirty billion, eight hundred twelve million, nine hundred forty-nine thousand, nine hundred sixteen".