12579879937 has 4 divisors (see below), whose sum is σ = 12652596180. Its totient is φ = 12507163696.

The previous prime is 12579879883. The next prime is 12579879941. The reversal of 12579879937 is 73997897521.

12579879937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10617035521 + 1962844416 = 103039^2 + 44304^2 .

It is a cyclic number.

It is not a de Polignac number, because 12579879937 - 2¹⁵ = 12579847169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12579879337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36357862 + ... + 36358207.

It is an arithmetic number, because the mean of its divisors is an integer number (3163149045).

Almost surely, 2^12579879937 is an apocalyptic number.

It is an amenable number.

12579879937 is a deficient number, since it is larger than the sum of its proper divisors (72716243).

12579879937 is an equidigital number, since it uses as much as digits as its factorization.

12579879937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72716242.

The product of its digits is 60011280, while the sum is 67.

The spelling of 12579879937 in words is "twelve billion, five hundred seventy-nine million, eight hundred seventy-nine thousand, nine hundred thirty-seven".