90102988863 has 6 divisors (see below), whose sum is σ = 130148761704. Its totient is φ = 60068659236.

The previous prime is 90102988853. The next prime is 90102988867. The reversal of 90102988863 is 36888920109.

It is a happy number.

It is not a de Polignac number, because 90102988863 - 2⁴ = 90102988847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90102988867) 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 5 ways as a sum of consecutive naturals, for example, 5005721595 + ... + 5005721612.

It is an arithmetic number, because the mean of its divisors is an integer number (21691460284).

Almost surely, 2^90102988863 is an apocalyptic number.

90102988863 is a deficient number, since it is larger than the sum of its proper divisors (40045772841).

90102988863 is a wasteful number, since it uses less digits than its factorization.

90102988863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011443213 (or 10011443210 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 90102988863 in words is "ninety billion, one hundred two million, nine hundred eighty-eight thousand, eight hundred sixty-three".