90957822192 has 120 divisors (see below), whose sum is σ = 256049080560. Its totient is φ = 30141895680.

The previous prime is 90957822173. The next prime is 90957822209. The reversal of 90957822192 is 29122875909.

It is a super-2 number, since 2×90957822192² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20179203 + ... + 20183709.

It is an arithmetic number, because the mean of its divisors is an integer number (2133742338).

Almost surely, 2^90957822192 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 90957822192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128024540280).

90957822192 is an abundant number, since it is smaller than the sum of its proper divisors (165091258368).

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

90957822192 is a wasteful number, since it uses less digits than its factorization.

90957822192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311 (or 5302 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 90957822192 in words is "ninety billion, nine hundred fifty-seven million, eight hundred twenty-two thousand, one hundred ninety-two".