90998826465 has 64 divisors (see below), whose sum is σ = 159938150400. Its totient is φ = 43981470720.

The previous prime is 90998826439. The next prime is 90998826521. The reversal of 90998826465 is 56462889909.

It is not a de Polignac number, because 90998826465 - 2⁵ = 90998826433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90998826396 and 90998826405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1544172 + ... + 1602018.

It is an arithmetic number, because the mean of its divisors is an integer number (2499033600).

Almost surely, 2^90998826465 is an apocalyptic number.

It is an amenable number.

90998826465 is a deficient number, since it is larger than the sum of its proper divisors (68939323935).

90998826465 is a wasteful number, since it uses less digits than its factorization.

90998826465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58102.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 90998826465 in words is "ninety billion, nine hundred ninety-eight million, eight hundred twenty-six thousand, four hundred sixty-five".