13243644714217 has 4 divisors (see below), whose sum is σ = 13566660438996. Its totient is φ = 12920628989440.

The previous prime is 13243644714197. The next prime is 13243644714233. The reversal of 13243644714217 is 71241744634231.

13243644714217 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 2808134711001 + 10435510003216 = 1675749^2 + 3230404^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243644714217 - 2³¹ = 13241497230569 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13243644714317) 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, 161507862328 + ... + 161507862409.

It is an arithmetic number, because the mean of its divisors is an integer number (3391665109749).

Almost surely, 2^{13243644714217} is an apocalyptic number.

It is an amenable number.

13243644714217 is a deficient number, since it is larger than the sum of its proper divisors (323015724779).

13243644714217 is an equidigital number, since it uses as much as digits as its factorization.

13243644714217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323015724778.

The product of its digits is 2709504, while the sum is 49.

The spelling of 13243644714217 in words is "thirteen trillion, two hundred forty-three billion, six hundred forty-four million, seven hundred fourteen thousand, two hundred seventeen".