12686331900 has 72 divisors (see below), whose sum is σ = 40042687104. Its totient is φ = 3075473600.

The previous prime is 12686331887. The next prime is 12686331907. The reversal of 12686331900 is 913368621.

It is a super-2 number, since 2×12686331900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686331907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1918872 + ... + 1925471.

It is an arithmetic number, because the mean of its divisors is an integer number (556148432).

Almost surely, 2^12686331900 is an apocalyptic number.

12686331900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12686331900 is an abundant number, since it is smaller than the sum of its proper divisors (27356355204).

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

12686331900 is a wasteful number, since it uses less digits than its factorization.

12686331900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844371 (or 3844364 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 12686331900 in words is "twelve billion, six hundred eighty-six million, three hundred thirty-one thousand, nine hundred".