12681713839 has 8 divisors (see below), whose sum is σ = 13589478000. Its totient is φ = 11791925376.

The previous prime is 12681713831. The next prime is 12681713893. The reversal of 12681713839 is 93831718621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12681713839 - 2³ = 12681713831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12681713792 and 12681713801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681713831) 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, 4492464 + ... + 4495285.

It is an arithmetic number, because the mean of its divisors is an integer number (1698684750).

Almost surely, 2^12681713839 is an apocalyptic number.

12681713839 is a deficient number, since it is larger than the sum of its proper divisors (907764161).

12681713839 is an equidigital number, since it uses as much as digits as its factorization.

12681713839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987849.

The product of its digits is 435456, while the sum is 49.

The spelling of 12681713839 in words is "twelve billion, six hundred eighty-one million, seven hundred thirteen thousand, eight hundred thirty-nine".