90004278464 has 28 divisors (see below), whose sum is σ = 182958397608. Its totient is φ = 43904524800.

The previous prime is 90004278443. The next prime is 90004278473. The reversal of 90004278464 is 46487240009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17147582 + ... + 17152829.

It is an arithmetic number, because the mean of its divisors is an integer number (6534228486).

Almost surely, 2^90004278464 is an apocalyptic number.

It is an amenable number.

90004278464 is an abundant number, since it is smaller than the sum of its proper divisors (92954119144).

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

90004278464 is a wasteful number, since it uses less digits than its factorization.

90004278464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34300464 (or 34300454 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 90004278464 in words is "ninety billion, four million, two hundred seventy-eight thousand, four hundred sixty-four".