12790679876836 has 27 divisors (see below), whose sum is σ = 22420237608489. Its totient is φ = 6384914714928.

The previous prime is 12790679876803. The next prime is 12790679876839. The reversal of 12790679876836 is 63867897609721.

The square root of 12790679876836 is 3576406.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10776710184100 + 2013969692736 = 3282790^2 + 1419144^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12790679876839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6273015105 + ... + 6273017143.

Almost surely, 2^{12790679876836} is an apocalyptic number.

12790679876836 is the 3576406-th square number.

It is an amenable number.

12790679876836 is a deficient number, since it is larger than the sum of its proper divisors (9629557731653).

12790679876836 is an frugal number, since it uses more digits than its factorization.

12790679876836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 2304433152, while the sum is 79.

The spelling of 12790679876836 in words is "twelve trillion, seven hundred ninety billion, six hundred seventy-nine million, eight hundred seventy-six thousand, eight hundred thirty-six".