12686738877065 has 8 divisors (see below), whose sum is σ = 16608094530048. Its totient is φ = 9226719183280.

The previous prime is 12686738877053. The next prime is 12686738877157. The reversal of 12686738877065 is 56077883768621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12686738877065 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12686738876983 and 12686738877001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115333989737 + ... + 115333989846.

It is an arithmetic number, because the mean of its divisors is an integer number (2076011816256).

Almost surely, 2^{12686738877065} is an apocalyptic number.

It is an amenable number.

12686738877065 is a deficient number, since it is larger than the sum of its proper divisors (3921355652983).

12686738877065 is a wasteful number, since it uses less digits than its factorization.

12686738877065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230667979599.

The product of its (nonzero) digits is 1137991680, while the sum is 74.

The spelling of 12686738877065 in words is "twelve trillion, six hundred eighty-six billion, seven hundred thirty-eight million, eight hundred seventy-seven thousand, sixty-five".