13044065717 has 4 divisors (see below), whose sum is σ = 13047504876. Its totient is φ = 13040626560.

The previous prime is 13044065707. The next prime is 13044065719. The reversal of 13044065717 is 71756044031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71756044031 = 7 ⋅10250863433.

It can be written as a sum of positive squares in 2 ways, for example, as 1085768401 + 11958297316 = 32951^2 + 109354^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044065717 - 2⁶ = 13044065653 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 (13044065719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713884 + ... + 1721477.

It is an arithmetic number, because the mean of its divisors is an integer number (3261876219).

Almost surely, 2^13044065717 is an apocalyptic number.

It is an amenable number.

13044065717 is a deficient number, since it is larger than the sum of its proper divisors (3439159).

13044065717 is an equidigital number, since it uses as much as digits as its factorization.

13044065717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439158.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 13044065717 in words is "thirteen billion, forty-four million, sixty-five thousand, seven hundred seventeen".