522969621136 has 20 divisors (see below), whose sum is σ = 1013268982572. Its totient is φ = 261480851456.

The previous prime is 522969621101. The next prime is 522969621137. The reversal of 522969621136 is 631126969225.

It can be written as a sum of positive squares in 2 ways, for example, as 153864769536 + 369104851600 = 392256^2 + 607540^2 .

It is a super-2 number, since 2×522969621136² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (522969621137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047756 + ... + 1464148.

Almost surely, 2^522969621136 is an apocalyptic number.

It is an amenable number.

522969621136 is a deficient number, since it is larger than the sum of its proper divisors (490299361436).

522969621136 is a wasteful number, since it uses less digits than its factorization.

522969621136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494898 (or 494892 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The spelling of 522969621136 in words is "five hundred twenty-two billion, nine hundred sixty-nine million, six hundred twenty-one thousand, one hundred thirty-six".