90857195226 has 96 divisors (see below), whose sum is σ = 232805664000. Its totient is φ = 25593452640.

The previous prime is 90857195201. The next prime is 90857195281. The reversal of 90857195226 is 62259175809.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334720 + ... + 541988.

It is an arithmetic number, because the mean of its divisors is an integer number (2425059000).

Almost surely, 2^90857195226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90857195226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116402832000).

90857195226 is an abundant number, since it is smaller than the sum of its proper divisors (141948468774).

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

90857195226 is a wasteful number, since it uses less digits than its factorization.

90857195226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207369 (or 207352 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 90857195226 in words is "ninety billion, eight hundred fifty-seven million, one hundred ninety-five thousand, two hundred twenty-six".