12881705317 has 8 divisors (see below), whose sum is σ = 14100026360. Its totient is φ = 11695872960.

The previous prime is 12881705303. The next prime is 12881705359. The reversal of 12881705317 is 71350718821.

It can be written as a sum of positive squares in 4 ways, for example, as 254913156 + 12626792161 = 15966^2 + 112369^2 .

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 12881705317 - 2⁷ = 12881705189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881705387) 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, 8121342 + ... + 8122927.

It is an arithmetic number, because the mean of its divisors is an integer number (1762503295).

Almost surely, 2^12881705317 is an apocalyptic number.

It is an amenable number.

12881705317 is a deficient number, since it is larger than the sum of its proper divisors (1218321043).

12881705317 is a wasteful number, since it uses less digits than its factorization.

12881705317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16244343.

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 12881705317 in words is "twelve billion, eight hundred eighty-one million, seven hundred five thousand, three hundred seventeen".