90818703444634 has 32 divisors (see below), whose sum is σ = 150108872314176. Its totient is φ = 40866432203520.

The previous prime is 90818703444631. The next prime is 90818703444823. The reversal of 90818703444634 is 43644430781809.

It is not an unprimeable number, because it can be changed into a prime (90818703444631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20031177 + ... + 24143020.

It is an arithmetic number, because the mean of its divisors is an integer number (4690902259818).

Almost surely, 2^{90818703444634} is an apocalyptic number.

90818703444634 is a deficient number, since it is larger than the sum of its proper divisors (59290168869542).

90818703444634 is a wasteful number, since it uses less digits than its factorization.

90818703444634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44175150.

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 90818703444634 in words is "ninety trillion, eight hundred eighteen billion, seven hundred three million, four hundred forty-four thousand, six hundred thirty-four".