13256677867 has 16 divisors (see below), whose sum is σ = 14146214400. Its totient is φ = 12399004800.

The previous prime is 13256677859. The next prime is 13256677909. The reversal of 13256677867 is 76877665231.

It is a cyclic number.

It is not a de Polignac number, because 13256677867 - 2³ = 13256677859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13256677667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218742 + ... + 272692.

It is an arithmetic number, because the mean of its divisors is an integer number (884138400).

Almost surely, 2^13256677867 is an apocalyptic number.

13256677867 is a deficient number, since it is larger than the sum of its proper divisors (889536533).

13256677867 is a wasteful number, since it uses less digits than its factorization.

13256677867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54246.

The product of its digits is 17781120, while the sum is 58.

The spelling of 13256677867 in words is "thirteen billion, two hundred fifty-six million, six hundred seventy-seven thousand, eight hundred sixty-seven".