522639351844 has 9 divisors (see below), whose sum is σ = 914621396017. Its totient is φ = 261318952984.

The previous prime is 522639351809. The next prime is 522639351859. The reversal of 522639351844 is 448153936225.

The square root of 522639351844 is 722938.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 429467894244 + 93171457600 = 655338^2 + 305240^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522639351791 and 522639351800.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1265142 + ... + 1626610.

Almost surely, 2^522639351844 is an apocalyptic number.

522639351844 is the 722938-th square number.

It is an amenable number.

522639351844 is a deficient number, since it is larger than the sum of its proper divisors (391982044173).

522639351844 is an frugal number, since it uses more digits than its factorization.

522639351844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722942 (or 361471 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 52.

The spelling of 522639351844 in words is "five hundred twenty-two billion, six hundred thirty-nine million, three hundred fifty-one thousand, eight hundred forty-four".