13247344217 has 16 divisors (see below), whose sum is σ = 14439297600. Its totient is φ = 12105696960.

The previous prime is 13247344183. The next prime is 13247344241. The reversal of 13247344217 is 71244374231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13247344217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13247349217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590123 + ... + 612159.

It is an arithmetic number, because the mean of its divisors is an integer number (902456100).

Almost surely, 2^13247344217 is an apocalyptic number.

It is an amenable number.

13247344217 is a deficient number, since it is larger than the sum of its proper divisors (1191953383).

13247344217 is a wasteful number, since it uses less digits than its factorization.

13247344217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23176.

The product of its digits is 112896, while the sum is 38.

The spelling of 13247344217 in words is "thirteen billion, two hundred forty-seven million, three hundred forty-four thousand, two hundred seventeen".