13260115717 has 4 divisors (see below), whose sum is σ = 13311711756. Its totient is φ = 13208519680.

The previous prime is 13260115691. The next prime is 13260115721. The reversal of 13260115717 is 71751106231.

It is a happy number.

13260115717 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 7437510081 + 5822605636 = 86241^2 + 76306^2 .

It is a cyclic number.

It is not a de Polignac number, because 13260115717 - 2²³ = 13251727109 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 (13260115747) 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, 25797634 + ... + 25798147.

It is an arithmetic number, because the mean of its divisors is an integer number (3327927939).

Almost surely, 2^13260115717 is an apocalyptic number.

It is an amenable number.

13260115717 is a deficient number, since it is larger than the sum of its proper divisors (51596039).

13260115717 is an equidigital number, since it uses as much as digits as its factorization.

13260115717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51596038.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 13260115717 in words is "thirteen billion, two hundred sixty million, one hundred fifteen thousand, seven hundred seventeen".