90004638459 has 8 divisors (see below), whose sum is σ = 121525250560. Its totient is φ = 59243559336.

The previous prime is 90004638443. The next prime is 90004638491. The reversal of 90004638459 is 95483640009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90004638459 - 2⁴ = 90004638443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90004638499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189882967 + ... + 189883440.

It is an arithmetic number, because the mean of its divisors is an integer number (15190656320).

Almost surely, 2^90004638459 is an apocalyptic number.

90004638459 is a deficient number, since it is larger than the sum of its proper divisors (31520612101).

90004638459 is a wasteful number, since it uses less digits than its factorization.

90004638459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379766489.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 90004638459 in words is "ninety billion, four million, six hundred thirty-eight thousand, four hundred fifty-nine".