12876513639 has 8 divisors (see below), whose sum is σ = 18729474432. Its totient is φ = 7803947640.

The previous prime is 12876513623. The next prime is 12876513667. The reversal of 12876513639 is 93631567821.

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

It is not a de Polignac number, because 12876513639 - 2⁴ = 12876513623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12876513591 and 12876513600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12876513539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195098659 + ... + 195098724.

It is an arithmetic number, because the mean of its divisors is an integer number (2341184304).

Almost surely, 2^12876513639 is an apocalyptic number.

12876513639 is a deficient number, since it is larger than the sum of its proper divisors (5852960793).

12876513639 is a wasteful number, since it uses less digits than its factorization.

12876513639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390197397.

The product of its digits is 1632960, while the sum is 51.

The spelling of 12876513639 in words is "twelve billion, eight hundred seventy-six million, five hundred thirteen thousand, six hundred thirty-nine".