12632440536 has 48 divisors (see below), whose sum is σ = 35480008200. Its totient is φ = 4210812864.

The previous prime is 12632440501. The next prime is 12632440589. The reversal of 12632440536 is 63504423621.

12632440536 is a `hidden beast` number, since 1 + 2 + 63 + 24 + 40 + 536 = 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 12632440536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3247141 + ... + 3251028.

Almost surely, 2^12632440536 is an apocalyptic number.

It is an amenable number.

12632440536 is an abundant number, since it is smaller than the sum of its proper divisors (22847567664).

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

12632440536 is an equidigital number, since it uses as much as digits as its factorization.

12632440536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498190 (or 6498174 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 12632440536 in words is "twelve billion, six hundred thirty-two million, four hundred forty thousand, five hundred thirty-six".