90498678108 has 24 divisors (see below), whose sum is σ = 211187816448. Its totient is φ = 30162764016.

The previous prime is 90498678097. The next prime is 90498678121. The reversal of 90498678108 is 80187689409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322716 + ... + 533987.

It is an arithmetic number, because the mean of its divisors is an integer number (8799492352).

Almost surely, 2^90498678108 is an apocalyptic number.

It is an amenable number.

90498678108 is an abundant number, since it is smaller than the sum of its proper divisors (120689138340).

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

90498678108 is a wasteful number, since it uses less digits than its factorization.

90498678108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865513 (or 865511 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 90498678108 in words is "ninety billion, four hundred ninety-eight million, six hundred seventy-eight thousand, one hundred eight".