90730883620 has 48 divisors (see below), whose sum is σ = 205551073728. Its totient is φ = 33441909120.

The previous prime is 90730883561. The next prime is 90730883623. The reversal of 90730883620 is 2638803709.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90730883623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157114 + ... + 454033.

It is an arithmetic number, because the mean of its divisors is an integer number (4282314036).

Almost surely, 2^90730883620 is an apocalyptic number.

It is an amenable number.

90730883620 is an abundant number, since it is smaller than the sum of its proper divisors (114820190108).

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

90730883620 is a wasteful number, since it uses less digits than its factorization.

90730883620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611740 (or 611738 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 90730883620 in words is "ninety billion, seven hundred thirty million, eight hundred eighty-three thousand, six hundred twenty".