12879129387 has 16 divisors (see below), whose sum is σ = 17619805728. Its totient is φ = 8362955520.

The previous prime is 12879129359. The next prime is 12879129407. The reversal of 12879129387 is 78392197821.

It is not a de Polignac number, because 12879129387 - 2⁶ = 12879129323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12879129587) 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, 10008 + ... + 160805.

It is an arithmetic number, because the mean of its divisors is an integer number (1101237858).

Almost surely, 2^12879129387 is an apocalyptic number.

12879129387 is a deficient number, since it is larger than the sum of its proper divisors (4740676341).

12879129387 is a wasteful number, since it uses less digits than its factorization.

12879129387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171470.

The product of its digits is 3048192, while the sum is 57.

The spelling of 12879129387 in words is "twelve billion, eight hundred seventy-nine million, one hundred twenty-nine thousand, three hundred eighty-seven".