522923318389 has 4 divisors (see below), whose sum is σ = 523272168000. Its totient is φ = 522574468780.

The previous prime is 522923318387. The next prime is 522923318479. The reversal of 522923318389 is 983813329225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 522923318389 - 2¹ = 522923318387 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 (522923318381) 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, 174422557 + ... + 174425554.

It is an arithmetic number, because the mean of its divisors is an integer number (130818042000).

Almost surely, 2^522923318389 is an apocalyptic number.

It is an amenable number.

522923318389 is a deficient number, since it is larger than the sum of its proper divisors (348849611).

522923318389 is a wasteful number, since it uses less digits than its factorization.

522923318389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348849610.

The product of its digits is 5598720, while the sum is 55.

The spelling of 522923318389 in words is "five hundred twenty-two billion, nine hundred twenty-three million, three hundred eighteen thousand, three hundred eighty-nine".