30943889664 has 72 divisors (see below), whose sum is σ = 83111656320. Its totient is φ = 10219972608.

The previous prime is 30943889653. The next prime is 30943889671. The reversal of 30943889664 is 46698834903.

It is a junction number, because it is equal to n+sod(n) for n = 30943889598 and 30943889607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101112 + ... + 268535.

It is an arithmetic number, because the mean of its divisors is an integer number (1154328560).

Almost surely, 2^30943889664 is an apocalyptic number.

It is an amenable number.

30943889664 is an abundant number, since it is smaller than the sum of its proper divisors (52167766656).

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

30943889664 is a wasteful number, since it uses less digits than its factorization.

30943889664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369775 (or 369761 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 30943889664 in words is "thirty billion, nine hundred forty-three million, eight hundred eighty-nine thousand, six hundred sixty-four".