90818234180 has 12 divisors (see below), whose sum is σ = 190718291820. Its totient is φ = 36327293664.

The previous prime is 90818234119. The next prime is 90818234209. The reversal of 90818234180 is 8143281809.

It can be written as a sum of positive squares in 2 ways, for example, as 22165849924 + 68652384256 = 148882^2 + 262016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270455835 + ... + 2270455874.

It is an arithmetic number, because the mean of its divisors is an integer number (15893190985).

Almost surely, 2^90818234180 is an apocalyptic number.

It is an amenable number.

90818234180 is an abundant number, since it is smaller than the sum of its proper divisors (99900057640).

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

90818234180 is a wasteful number, since it uses less digits than its factorization.

90818234180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540911718 (or 4540911716 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 90818234180 in words is "ninety billion, eight hundred eighteen million, two hundred thirty-four thousand, one hundred eighty".