90421170796627 has 16 divisors (see below), whose sum is σ = 99123250393440. Its totient is φ = 81800396121600.

The previous prime is 90421170796601. The next prime is 90421170796751. The reversal of 90421170796627 is 72669707112409.

It is a cyclic number.

It is not a de Polignac number, because 90421170796627 - 2²³ = 90421162408019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90421170796927) 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, 22548324 + ... + 26253937.

It is an arithmetic number, because the mean of its divisors is an integer number (6195203149590).

Almost surely, 2^{90421170796627} is an apocalyptic number.

90421170796627 is a deficient number, since it is larger than the sum of its proper divisors (8702079596813).

90421170796627 is a wasteful number, since it uses less digits than its factorization.

90421170796627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48803094.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 90421170796627 in words is "ninety trillion, four hundred twenty-one billion, one hundred seventy million, seven hundred ninety-six thousand, six hundred twenty-seven".