30904376688 has 80 divisors (see below), whose sum is σ = 91104540960. Its totient is φ = 10023035904.

The previous prime is 30904376647. The next prime is 30904376731. The reversal of 30904376688 is 88667340903.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 950745 + ... + 982712.

It is an arithmetic number, because the mean of its divisors is an integer number (1138806762).

Almost surely, 2^30904376688 is an apocalyptic number.

It is an amenable number.

30904376688 is an abundant number, since it is smaller than the sum of its proper divisors (60200164272).

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

30904376688 is a wasteful number, since it uses less digits than its factorization.

30904376688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933511 (or 1933499 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 30904376688 in words is "thirty billion, nine hundred four million, three hundred seventy-six thousand, six hundred eighty-eight".