90173300889 has 32 divisors (see below), whose sum is σ = 145712874240. Its totient is φ = 48422172672.

The previous prime is 90173300879. The next prime is 90173300909. The reversal of 90173300889 is 98800337109.

It is not a de Polignac number, because 90173300889 - 2⁷ = 90173300761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90173300879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39717 + ... + 426525.

It is an arithmetic number, because the mean of its divisors is an integer number (4553527320).

Almost surely, 2^90173300889 is an apocalyptic number.

It is an amenable number.

90173300889 is a deficient number, since it is larger than the sum of its proper divisors (55539573351).

90173300889 is a wasteful number, since it uses less digits than its factorization.

90173300889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387489.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 90173300889 in words is "ninety billion, one hundred seventy-three million, three hundred thousand, eight hundred eighty-nine".