12715342779 has 8 divisors (see below), whose sum is σ = 17067574800. Its totient is φ = 8420002976.

The previous prime is 12715342771. The next prime is 12715342799. The reversal of 12715342779 is 97724351721.

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 12715342779 - 2³ = 12715342771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12715342771) 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 7 ways as a sum of consecutive naturals, for example, 14222532 + ... + 14223425.

It is an arithmetic number, because the mean of its divisors is an integer number (2133446850).

Almost surely, 2^12715342779 is an apocalyptic number.

12715342779 is a deficient number, since it is larger than the sum of its proper divisors (4352232021).

12715342779 is a wasteful number, since it uses less digits than its factorization.

12715342779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28446109.

The product of its digits is 740880, while the sum is 48.

The spelling of 12715342779 in words is "twelve billion, seven hundred fifteen million, three hundred forty-two thousand, seven hundred seventy-nine".