12318691997694 has 16 divisors (see below), whose sum is σ = 25041275537040. Its totient is φ = 4038915408960.

The previous prime is 12318691997617. The next prime is 12318691997713. The reversal of 12318691997694 is 49679919681321.

It is a congruent number.

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, 16828813839 + ... + 16828814570.

It is an arithmetic number, because the mean of its divisors is an integer number (1565079721065).

Almost surely, 2^{12318691997694} is an apocalyptic number.

12318691997694 is an abundant number, since it is smaller than the sum of its proper divisors (12722583539346).

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

12318691997694 is a wasteful number, since it uses less digits than its factorization.

12318691997694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33657628475.

The product of its digits is 317447424, while the sum is 75.

The spelling of 12318691997694 in words is "twelve trillion, three hundred eighteen billion, six hundred ninety-one million, nine hundred ninety-seven thousand, six hundred ninety-four".