12618157697799 has 16 divisors (see below), whose sum is σ = 17404861132800. Its totient is φ = 8121796553696.

The previous prime is 12618157697737. The next prime is 12618157697839. The reversal of 12618157697799 is 99779675181621.

It is a cyclic number.

It is not a de Polignac number, because 12618157697799 - 2⁹ = 12618157697287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12618157697729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929482 + ... + 5108840.

It is an arithmetic number, because the mean of its divisors is an integer number (1087803820800).

Almost surely, 2^{12618157697799} is an apocalyptic number.

12618157697799 is a deficient number, since it is larger than the sum of its proper divisors (4786703435001).

12618157697799 is a wasteful number, since it uses less digits than its factorization.

12618157697799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214094.

The product of its digits is 720135360, while the sum is 78.

The spelling of 12618157697799 in words is "twelve trillion, six hundred eighteen billion, one hundred fifty-seven million, six hundred ninety-seven thousand, seven hundred ninety-nine".