512632432564 has 24 divisors (see below), whose sum is σ = 1025490502400. Its totient is φ = 219651263136.

The previous prime is 512632432549. The next prime is 512632432567. The reversal of 512632432564 is 465234236215.

It is a super-2 number, since 2×512632432564² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 512632432564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512632432567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884972 + ... + 2139715.

Almost surely, 2^512632432564 is an apocalyptic number.

It is an amenable number.

512632432564 is an abundant number, since it is smaller than the sum of its proper divisors (512858069836).

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

512632432564 is a wasteful number, since it uses less digits than its factorization.

512632432564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029247 (or 4029245 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

Adding to 512632432564 its reverse (465234236215), we get a palindrome (977866668779).

The spelling of 512632432564 in words is "five hundred twelve billion, six hundred thirty-two million, four hundred thirty-two thousand, five hundred sixty-four".