90421170796626 has 16 divisors (see below), whose sum is σ = 181360514496000. Its totient is φ = 30054028115088.

The previous prime is 90421170796601. The next prime is 90421170796751. The reversal of 90421170796626 is 62669707112409.

It is a super-2 number, since 2×90421170796626² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90421170796626.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21590535346 + ... + 21590539533.

It is an arithmetic number, because the mean of its divisors is an integer number (11335032156000).

Almost surely, 2^{90421170796626} is an apocalyptic number.

90421170796626 is an abundant number, since it is smaller than the sum of its proper divisors (90939343699374).

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

90421170796626 is a wasteful number, since it uses less digits than its factorization.

90421170796626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43181075233.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 90421170796626 in words is "ninety trillion, four hundred twenty-one billion, one hundred seventy million, seven hundred ninety-six thousand, six hundred twenty-six".