12186858680 has 32 divisors (see below), whose sum is σ = 29033400240. Its totient is φ = 4587993600.

The previous prime is 12186858641. The next prime is 12186858689. The reversal of 12186858680 is 8685868121.

12186858680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12186858689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8960246 + ... + 8961605.

Almost surely, 2^12186858680 is an apocalyptic number.

12186858680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12186858680 is an abundant number, since it is smaller than the sum of its proper divisors (16846541560).

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

12186858680 is a wasteful number, since it uses less digits than its factorization.

12186858680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17921879 (or 17921875 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 53.

The spelling of 12186858680 in words is "twelve billion, one hundred eighty-six million, eight hundred fifty-eight thousand, six hundred eighty".