12530433636 has 72 divisors (see below), whose sum is σ = 36657304320. Its totient is φ = 3534800256.

The previous prime is 12530433623. The next prime is 12530433659. The reversal of 12530433636 is 63633403521.

12530433636 is a `hidden beast` number, since 1 + 253 + 0 + 43 + 363 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12530433636.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294801 + ... + 334616.

Almost surely, 2^12530433636 is an apocalyptic number.

It is an amenable number.

12530433636 is an abundant number, since it is smaller than the sum of its proper divisors (24126870684).

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

12530433636 is a wasteful number, since it uses less digits than its factorization.

12530433636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629513 (or 629508 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The spelling of 12530433636 in words is "twelve billion, five hundred thirty million, four hundred thirty-three thousand, six hundred thirty-six".