14543909858817 has 12 divisors (see below), whose sum is σ = 21009329978260. Its totient is φ = 9695265975648.

The previous prime is 14543909858809. The next prime is 14543909858857. The reversal of 14543909858817 is 71885890934541.

It is a happy number.

14543909858817 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 39 + 0 + 9 + 8 + 588 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3848596462656 + 10695313396161 = 1961784^2 + 3270369^2 .

It is not a de Polignac number, because 14543909858817 - 2³ = 14543909858809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14543909858857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56024158 + ... + 56283159.

Almost surely, 2^{14543909858817} is an apocalyptic number.

It is an amenable number.

14543909858817 is a deficient number, since it is larger than the sum of its proper divisors (6465420119443).

14543909858817 is a wasteful number, since it uses less digits than its factorization.

14543909858817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112321712 (or 112321709 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 72.

The spelling of 14543909858817 in words is "fourteen trillion, five hundred forty-three billion, nine hundred nine million, eight hundred fifty-eight thousand, eight hundred seventeen".