12684116679 has 32 divisors (see below), whose sum is σ = 18765507264. Its totient is φ = 7572372480.

The previous prime is 12684116671. The next prime is 12684116699. The reversal of 12684116679 is 97661148621.

It is not a de Polignac number, because 12684116679 - 2³ = 12684116671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684116671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137149 + ... + 210185.

It is an arithmetic number, because the mean of its divisors is an integer number (586422102).

Almost surely, 2^12684116679 is an apocalyptic number.

12684116679 is a deficient number, since it is larger than the sum of its proper divisors (6081390585).

12684116679 is a wasteful number, since it uses less digits than its factorization.

12684116679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73187.

The product of its digits is 870912, while the sum is 51.

The spelling of 12684116679 in words is "twelve billion, six hundred eighty-four million, one hundred sixteen thousand, six hundred seventy-nine".