90077258908 has 54 divisors (see below), whose sum is σ = 195123282984. Its totient is φ = 35626792032.

The previous prime is 90077258819. The next prime is 90077258911. The reversal of 90077258908 is 80985277009.

It is a super-2 number, since 2×90077258908² (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 17 ways as a sum of consecutive naturals, for example, 20643535 + ... + 20647897.

Almost surely, 2^90077258908 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 90077258908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97561641492).

90077258908 is an abundant number, since it is smaller than the sum of its proper divisors (105046024076).

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

90077258908 is an equidigital number, since it uses as much as digits as its factorization.

90077258908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 90077258908 in words is "ninety billion, seventy-seven million, two hundred fifty-eight thousand, nine hundred eight".