12838137568 has 24 divisors (see below), whose sum is σ = 25703478360. Its totient is φ = 6310270080.

The previous prime is 12838137551. The next prime is 12838137647. The reversal of 12838137568 is 86573183821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398043 + ... + 3401818.

It is an arithmetic number, because the mean of its divisors is an integer number (1070978265).

Almost surely, 2^12838137568 is an apocalyptic number.

It is an amenable number.

12838137568 is an abundant number, since it is smaller than the sum of its proper divisors (12865340792).

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

12838137568 is an equidigital number, since it uses as much as digits as its factorization.

12838137568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799930 (or 6799922 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The spelling of 12838137568 in words is "twelve billion, eight hundred thirty-eight million, one hundred thirty-seven thousand, five hundred sixty-eight".