90407070808 has 16 divisors (see below), whose sum is σ = 172292164560. Its totient is φ = 44462493600.

The previous prime is 90407070781. The next prime is 90407070821. The reversal of 90407070808 is 80807070409.

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 3 ways as a sum of consecutive naturals, for example, 92629708 + ... + 92630683.

It is an arithmetic number, because the mean of its divisors is an integer number (10768260285).

Almost surely, 2^90407070808 is an apocalyptic number.

It is an amenable number.

90407070808 is a deficient number, since it is larger than the sum of its proper divisors (81885093752).

90407070808 is a wasteful number, since it uses less digits than its factorization.

90407070808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185260458 (or 185260454 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 90407070808 in words is "ninety billion, four hundred seven million, seventy thousand, eight hundred eight".