90850504908 has 48 divisors (see below), whose sum is σ = 212481561600. Its totient is φ = 30212567424.

The previous prime is 90850504903. The next prime is 90850504909. The reversal of 90850504908 is 80940505809.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90850504903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13747341 + ... + 13753947.

It is an arithmetic number, because the mean of its divisors is an integer number (4426699200).

Almost surely, 2^90850504908 is an apocalyptic number.

It is an amenable number.

90850504908 is an abundant number, since it is smaller than the sum of its proper divisors (121631056692).

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

90850504908 is a wasteful number, since it uses less digits than its factorization.

90850504908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9126 (or 9124 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

Subtracting from 90850504908 its reverse (80940505809), we obtain a palindrome (9909999099).

The spelling of 90850504908 in words is "ninety billion, eight hundred fifty million, five hundred four thousand, nine hundred eight".