90421170796624 has 20 divisors (see below), whose sum is σ = 184411598335840. Its totient is φ = 42831080903520.

The previous prime is 90421170796601. The next prime is 90421170796751. The reversal of 90421170796624 is 42669707112409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148719030612 + ... + 148719031219.

It is an arithmetic number, because the mean of its divisors is an integer number (9220579916792).

Almost surely, 2^{90421170796624} is an apocalyptic number.

It is an amenable number.

90421170796624 is an abundant number, since it is smaller than the sum of its proper divisors (93990427539216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90421170796624 is a wasteful number, since it uses less digits than its factorization.

90421170796624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297438061858 (or 297438061852 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 90421170796624 in words is "ninety trillion, four hundred twenty-one billion, one hundred seventy million, seven hundred ninety-six thousand, six hundred twenty-four".