90634231168 has 64 divisors (see below), whose sum is σ = 195257351520. Its totient is φ = 41657425920.

The previous prime is 90634231139. The next prime is 90634231169. The reversal of 90634231168 is 86113243609.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90634231169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288021 + ... + 514027.

Almost surely, 2^90634231168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90634231168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97628675760).

90634231168 is an abundant number, since it is smaller than the sum of its proper divisors (104623120352).

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

90634231168 is a wasteful number, since it uses less digits than its factorization.

90634231168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226275 (or 226263 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 90634231168 in words is "ninety billion, six hundred thirty-four million, two hundred thirty-one thousand, one hundred sixty-eight".