12388808685 has 16 divisors (see below), whose sum is σ = 21624102720. Its totient is φ = 6006695040.

The previous prime is 12388808681. The next prime is 12388808779. The reversal of 12388808685 is 58680888321.

It is not a de Polignac number, because 12388808685 - 2² = 12388808681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388808681) 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, 37541680 + ... + 37542009.

It is an arithmetic number, because the mean of its divisors is an integer number (1351506420).

Almost surely, 2^12388808685 is an apocalyptic number.

12388808685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12388808685 is a deficient number, since it is larger than the sum of its proper divisors (9235294035).

12388808685 is a wasteful number, since it uses less digits than its factorization.

12388808685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75083708.

The product of its (nonzero) digits is 5898240, while the sum is 57.

The spelling of 12388808685 in words is "twelve billion, three hundred eighty-eight million, eight hundred eight thousand, six hundred eighty-five".