13447288717 has 8 divisors (see below), whose sum is σ = 13889249280. Its totient is φ = 13005839280.

The previous prime is 13447288693. The next prime is 13447288727. The reversal of 13447288717 is 71788274431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13447288717 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 (13447288727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73933 + ... + 179890.

It is an arithmetic number, because the mean of its divisors is an integer number (1736156160).

Almost surely, 2^13447288717 is an apocalyptic number.

It is an amenable number.

13447288717 is a deficient number, since it is larger than the sum of its proper divisors (441960563).

13447288717 is a wasteful number, since it uses less digits than its factorization.

13447288717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255563.

The product of its digits is 2107392, while the sum is 52.

The spelling of 13447288717 in words is "thirteen billion, four hundred forty-seven million, two hundred eighty-eight thousand, seven hundred seventeen".