522923318388 has 36 divisors (see below), whose sum is σ = 1332242096640. Its totient is φ = 172935269136.

The previous prime is 522923318387. The next prime is 522923318479. The reversal of 522923318388 is 883813329225.

It is a happy number.

522923318388 is a `hidden beast` number, since 5 + 2 + 29 + 233 + 1 + 8 + 388 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57183018 + ... + 57192161.

Almost surely, 2^522923318388 is an apocalyptic number.

It is an amenable number.

522923318388 is an abundant number, since it is smaller than the sum of its proper divisors (809318778252).

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

522923318388 is a wasteful number, since it uses less digits than its factorization.

522923318388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114375316 (or 114375311 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 522923318388 in words is "five hundred twenty-two billion, nine hundred twenty-three million, three hundred eighteen thousand, three hundred eighty-eight".