12688442393 has 8 divisors (see below), whose sum is σ = 13842813600. Its totient is φ = 11534217280.

The previous prime is 12688442359. The next prime is 12688442411. The reversal of 12688442393 is 39324488621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12688442393 - 2¹⁸ = 12688180249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12688442353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229121 + ... + 279057.

It is an arithmetic number, because the mean of its divisors is an integer number (1730351700).

Almost surely, 2^12688442393 is an apocalyptic number.

It is an amenable number.

12688442393 is a deficient number, since it is larger than the sum of its proper divisors (1154371207).

12688442393 is a wasteful number, since it uses less digits than its factorization.

12688442393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73047.

The product of its digits is 1990656, while the sum is 50.

The spelling of 12688442393 in words is "twelve billion, six hundred eighty-eight million, four hundred forty-two thousand, three hundred ninety-three".