12876872657 has 4 divisors (see below), whose sum is σ = 14047497456. Its totient is φ = 11706247860.

The previous prime is 12876872651. The next prime is 12876872669. The reversal of 12876872657 is 75627867821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12876872657 - 2⁸ = 12876872401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12876872596 and 12876872605.

It is not an unprimeable number, because it can be changed into a prime (12876872651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585312383 + ... + 585312404.

It is an arithmetic number, because the mean of its divisors is an integer number (3511874364).

Almost surely, 2^12876872657 is an apocalyptic number.

It is an amenable number.

12876872657 is a deficient number, since it is larger than the sum of its proper divisors (1170624799).

12876872657 is a wasteful number, since it uses less digits than its factorization.

12876872657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170624798.

The product of its digits is 15805440, while the sum is 59.

The spelling of 12876872657 in words is "twelve billion, eight hundred seventy-six million, eight hundred seventy-two thousand, six hundred fifty-seven".