12726718688 has 12 divisors (see below), whose sum is σ = 25055727480. Its totient is φ = 6363359328.

The previous prime is 12726718679. The next prime is 12726718699. The reversal of 12726718688 is 88681762721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198854948 + ... + 198855011.

It is an arithmetic number, because the mean of its divisors is an integer number (2087977290).

Almost surely, 2^12726718688 is an apocalyptic number.

It is an amenable number.

12726718688 is a deficient number, since it is larger than the sum of its proper divisors (12329008792).

12726718688 is an equidigital number, since it uses as much as digits as its factorization.

12726718688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397709969 (or 397709961 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The spelling of 12726718688 in words is "twelve billion, seven hundred twenty-six million, seven hundred eighteen thousand, six hundred eighty-eight".