12671718668 has 12 divisors (see below), whose sum is σ = 25343437392. Its totient is φ = 5430736560.

The previous prime is 12671718649. The next prime is 12671718679. The reversal of 12671718668 is 86681717621.

12671718668 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226280663 + ... + 226280718.

It is an arithmetic number, because the mean of its divisors is an integer number (2111953116).

Almost surely, 2^12671718668 is an apocalyptic number.

It is an amenable number.

12671718668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12671718668 is a wasteful number, since it uses less digits than its factorization.

12671718668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452561392 (or 452561390 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 53.

The spelling of 12671718668 in words is "twelve billion, six hundred seventy-one million, seven hundred eighteen thousand, six hundred sixty-eight".