90173041803 has 32 divisors (see below), whose sum is σ = 147374767680. Its totient is φ = 54137652480.

The previous prime is 90173041789. The next prime is 90173041813. The reversal of 90173041803 is 30814037109.

It is a happy number.

It is not a de Polignac number, because 90173041803 - 2⁵ = 90173041771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90173041813) 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 31 ways as a sum of consecutive naturals, for example, 3118576 + ... + 3147357.

It is an arithmetic number, because the mean of its divisors is an integer number (4605461490).

Almost surely, 2^90173041803 is an apocalyptic number.

90173041803 is a deficient number, since it is larger than the sum of its proper divisors (57201725877).

90173041803 is a wasteful number, since it uses less digits than its factorization.

90173041803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265996 (or 6265990 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 90173041803 in words is "ninety billion, one hundred seventy-three million, forty-one thousand, eight hundred three".