90790315775788 has 24 divisors (see below), whose sum is σ = 159707360932560. Its totient is φ = 45159644405760.

The previous prime is 90790315775743. The next prime is 90790315775801. The reversal of 90790315775788 is 88757751309709.

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, 151268028 + ... + 151867036.

It is an arithmetic number, because the mean of its divisors is an integer number (6654473372190).

Almost surely, 2^{90790315775788} is an apocalyptic number.

It is an amenable number.

90790315775788 is a deficient number, since it is larger than the sum of its proper divisors (68917045156772).

90790315775788 is a wasteful number, since it uses less digits than its factorization.

90790315775788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795537 (or 795535 counting only the distinct ones).

The product of its (nonzero) digits is 933508800, while the sum is 76.

The spelling of 90790315775788 in words is "ninety trillion, seven hundred ninety billion, three hundred fifteen million, seven hundred seventy-five thousand, seven hundred eighty-eight".