522805319823 has 4 divisors (see below), whose sum is σ = 697073759768. Its totient is φ = 348536879880.

The previous prime is 522805319809. The next prime is 522805319857. The reversal of 522805319823 is 328913508225.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 522805319823 - 2⁴ = 522805319807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522805319893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87134219968 + ... + 87134219973.

It is an arithmetic number, because the mean of its divisors is an integer number (174268439942).

Almost surely, 2^522805319823 is an apocalyptic number.

522805319823 is a deficient number, since it is larger than the sum of its proper divisors (174268439945).

522805319823 is a wasteful number, since it uses less digits than its factorization.

522805319823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174268439944.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 522805319823 in words is "five hundred twenty-two billion, eight hundred five million, three hundred nineteen thousand, eight hundred twenty-three".