90888385159 has 20 divisors (see below), whose sum is σ = 107667336280. Its totient is φ = 76269813840.

The previous prime is 90888385151. The next prime is 90888385193. The reversal of 90888385159 is 95158388809.

It is a happy number.

It is not a de Polignac number, because 90888385159 - 2³ = 90888385151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90888385159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90888385151) 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 19 ways as a sum of consecutive naturals, for example, 48429 + ... + 429094.

It is an arithmetic number, because the mean of its divisors is an integer number (5383366814).

Almost surely, 2^90888385159 is an apocalyptic number.

90888385159 is a deficient number, since it is larger than the sum of its proper divisors (16778951121).

90888385159 is an equidigital number, since it uses as much as digits as its factorization.

90888385159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477580 (or 477547 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 64.

The spelling of 90888385159 in words is "ninety billion, eight hundred eighty-eight million, three hundred eighty-five thousand, one hundred fifty-nine".