19604808768 has 56 divisors (see below), whose sum is σ = 51946474720. Its totient is φ = 6525434880.

The previous prime is 19604808739. The next prime is 19604808887. The reversal of 19604808768 is 86780840691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58788 + ... + 206556.

It is an arithmetic number, because the mean of its divisors is an integer number (927615620).

Almost surely, 2^19604808768 is an apocalyptic number.

It is an amenable number.

19604808768 is an abundant number, since it is smaller than the sum of its proper divisors (32341665952).

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

19604808768 is a wasteful number, since it uses less digits than its factorization.

19604808768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148475 (or 148465 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 19604808768 in words is "nineteen billion, six hundred four million, eight hundred eight thousand, seven hundred sixty-eight".