90499909320 has 96 divisors (see below), whose sum is σ = 294194529720. Its totient is φ = 24127580160.

The previous prime is 90499909307. The next prime is 90499909351. The reversal of 90499909320 is 2390999409.

It can be written as a sum of positive squares in 4 ways, for example, as 85545720324 + 4954188996 = 292482^2 + 70386^2 .

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, 1614402 + ... + 1669518.

Almost surely, 2^90499909320 is an apocalyptic number.

90499909320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

90499909320 is an abundant number, since it is smaller than the sum of its proper divisors (203694620400).

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

90499909320 is a wasteful number, since it uses less digits than its factorization.

90499909320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59695 (or 59688 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 54.

The spelling of 90499909320 in words is "ninety billion, four hundred ninety-nine million, nine hundred nine thousand, three hundred twenty".