90887866338 has 32 divisors (see below), whose sum is σ = 183143419200. Its totient is φ = 30068150976.

The previous prime is 90887866337. The next prime is 90887866427. The reversal of 90887866338 is 83366878809.

It is not an unprimeable number, because it can be changed into a prime (90887866337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796928 + ... + 2829236.

It is an arithmetic number, because the mean of its divisors is an integer number (5723231850).

Almost surely, 2^90887866338 is an apocalyptic number.

90887866338 is an abundant number, since it is smaller than the sum of its proper divisors (92255552862).

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

90887866338 is a wasteful number, since it uses less digits than its factorization.

90887866338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35826.

The product of its (nonzero) digits is 83607552, while the sum is 66.

The spelling of 90887866338 in words is "ninety billion, eight hundred eighty-seven million, eight hundred sixty-six thousand, three hundred thirty-eight".