12688081746 has 16 divisors (see below), whose sum is σ = 25377705408. Its totient is φ = 4229103600.

The previous prime is 12688081709. The next prime is 12688081751. The reversal of 12688081746 is 64718088621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61731 + ... + 170841.

It is an arithmetic number, because the mean of its divisors is an integer number (1586106588).

Almost surely, 2^12688081746 is an apocalyptic number.

12688081746 is an abundant number, since it is smaller than the sum of its proper divisors (12689623662).

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

12688081746 is a wasteful number, since it uses less digits than its factorization.

12688081746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128497.

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 12688081746 in words is "twelve billion, six hundred eighty-eight million, eighty-one thousand, seven hundred forty-six".