12688407074 has 32 divisors (see below), whose sum is σ = 22461542400. Its totient is φ = 5260522320.

The previous prime is 12688407049. The next prime is 12688407097. The reversal of 12688407074 is 47070488621.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2192717 + ... + 2198495.

It is an arithmetic number, because the mean of its divisors is an integer number (701923200).

Almost surely, 2^12688407074 is an apocalyptic number.

12688407074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12688407074 is a deficient number, since it is larger than the sum of its proper divisors (9773135326).

12688407074 is a wasteful number, since it uses less digits than its factorization.

12688407074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10878.

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 12688407074 in words is "twelve billion, six hundred eighty-eight million, four hundred seven thousand, seventy-four".