90125988298 has 16 divisors (see below), whose sum is σ = 137446370280. Its totient is φ = 44310974400.

The previous prime is 90125988193. The next prime is 90125988299. The reversal of 90125988298 is 89288952109.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51065604529 + 39060383769 = 225977^2 + 197637^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (90125988299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304468 + ... + 522448.

Almost surely, 2^90125988298 is an apocalyptic number.

90125988298 is a deficient number, since it is larger than the sum of its proper divisors (47320381982).

90125988298 is a wasteful number, since it uses less digits than its factorization.

90125988298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221433.

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 90125988298 in words is "ninety billion, one hundred twenty-five million, nine hundred eighty-eight thousand, two hundred ninety-eight".