14218255717 has 4 divisors (see below), whose sum is σ = 14348698540. Its totient is φ = 14087812896.

The previous prime is 14218255703. The next prime is 14218255721. The reversal of 14218255717 is 71755281241.

It is a happy number.

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 3325367556 + 10892888161 = 57666^2 + 104369^2 .

It is a cyclic number.

It is not a de Polignac number, because 14218255717 - 2¹¹ = 14218253669 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 (14218255747) 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, 65221248 + ... + 65221465.

It is an arithmetic number, because the mean of its divisors is an integer number (3587174635).

Almost surely, 2^14218255717 is an apocalyptic number.

It is an amenable number.

14218255717 is a deficient number, since it is larger than the sum of its proper divisors (130442823).

14218255717 is a wasteful number, since it uses less digits than its factorization.

14218255717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130442822.

The product of its digits is 156800, while the sum is 43.

The spelling of 14218255717 in words is "fourteen billion, two hundred eighteen million, two hundred fifty-five thousand, seven hundred seventeen".