90089569242 has 24 divisors (see below), whose sum is σ = 206676071316. Its totient is φ = 28263394176.

The previous prime is 90089569217. The next prime is 90089569261. The reversal of 90089569242 is 24296598009.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84990323961 + 5099245281 = 291531^2 + 71409^2 .

It is a super-2 number, since 2×90089569242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147204873 + ... + 147205484.

Almost surely, 2^90089569242 is an apocalyptic number.

90089569242 is an abundant number, since it is smaller than the sum of its proper divisors (116586502074).

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

90089569242 is a wasteful number, since it uses less digits than its factorization.

90089569242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294410382 (or 294410379 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 90089569242 in words is "ninety billion, eighty-nine million, five hundred sixty-nine thousand, two hundred forty-two".