522134871621 has 32 divisors (see below), whose sum is σ = 760490035200. Its totient is φ = 316020238080.

The previous prime is 522134871581. The next prime is 522134871641. The reversal of 522134871621 is 126178431225.

It is not a de Polignac number, because 522134871621 - 2²² = 522130677317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522134871641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133229700 + ... + 133233618.

It is an arithmetic number, because the mean of its divisors is an integer number (23765313600).

Almost surely, 2^522134871621 is an apocalyptic number.

It is an amenable number.

522134871621 is a deficient number, since it is larger than the sum of its proper divisors (238355163579).

522134871621 is a wasteful number, since it uses less digits than its factorization.

522134871621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329.

The product of its digits is 161280, while the sum is 42.

The spelling of 522134871621 in words is "five hundred twenty-two billion, one hundred thirty-four million, eight hundred seventy-one thousand, six hundred twenty-one".