90904007895 has 16 divisors (see below), whose sum is σ = 145671229440. Its totient is φ = 48407198624.

The previous prime is 90904007863. The next prime is 90904007897. The reversal of 90904007895 is 59870040909.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90904007895 - 2⁵ = 90904007863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90904007897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4673655 + ... + 4693064.

It is an arithmetic number, because the mean of its divisors is an integer number (9104451840).

Almost surely, 2^90904007895 is an apocalyptic number.

90904007895 is a deficient number, since it is larger than the sum of its proper divisors (54767221545).

90904007895 is a wasteful number, since it uses less digits than its factorization.

90904007895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367374.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 90904007895 in words is "ninety billion, nine hundred four million, seven thousand, eight hundred ninety-five".