90990179264 has 28 divisors (see below), whose sum is σ = 182346359208. Its totient is φ = 45044640000.

The previous prime is 90990179261. The next prime is 90990179299. The reversal of 90990179264 is 46297109909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90990179261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7031762 + ... + 7044689.

Almost surely, 2^90990179264 is an apocalyptic number.

It is an amenable number.

90990179264 is an abundant number, since it is smaller than the sum of its proper divisors (91356179944).

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

90990179264 is a wasteful number, since it uses less digits than its factorization.

90990179264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076564 (or 14076554 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 90990179264 in words is "ninety billion, nine hundred ninety million, one hundred seventy-nine thousand, two hundred sixty-four".