90675384788 has 24 divisors (see below), whose sum is σ = 168119626752. Its totient is φ = 42644490624.

The previous prime is 90675384773. The next prime is 90675384847. The reversal of 90675384788 is 88748357609.

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 7 ways as a sum of consecutive naturals, for example, 299156 + ... + 520427.

It is an arithmetic number, because the mean of its divisors is an integer number (7004984448).

Almost surely, 2^90675384788 is an apocalyptic number.

It is an amenable number.

90675384788 is a deficient number, since it is larger than the sum of its proper divisors (77444241964).

90675384788 is a wasteful number, since it uses less digits than its factorization.

90675384788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821231 (or 821229 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 90675384788 in words is "ninety billion, six hundred seventy-five million, three hundred eighty-four thousand, seven hundred eighty-eight".