12638446032 has 40 divisors (see below), whose sum is σ = 32667851584. Its totient is φ = 4210424064.

The previous prime is 12638446013. The next prime is 12638446057. The reversal of 12638446032 is 23064483621.

12638446032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11748 + ... + 159420.

Almost surely, 2^12638446032 is an apocalyptic number.

12638446032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12638446032 is an abundant number, since it is smaller than the sum of its proper divisors (20029405552).

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

12638446032 is a wasteful number, since it uses less digits than its factorization.

12638446032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149467 (or 149461 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 12638446032 in words is "twelve billion, six hundred thirty-eight million, four hundred forty-six thousand, thirty-two".