2439345768917 has 2 divisors, whose sum is σ = 2439345768918. Its totient is φ = 2439345768916.

The previous prime is 2439345768863. The next prime is 2439345768991. The reversal of 2439345768917 is 7198675439342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2362571888356 + 76773880561 = 1537066^2 + 277081^2 .

It is a cyclic number.

It is not a de Polignac number, because 2439345768917 - 2³² = 2435050801621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2439345768317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219672884458 + 1219672884459.

It is an arithmetic number, because the mean of its divisors is an integer number (1219672884459).

Almost surely, 2^{2439345768917} is an apocalyptic number.

It is an amenable number.

2439345768917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439345768917 is an equidigital number, since it uses as much as digits as its factorization.

2439345768917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 68.

The spelling of 2439345768917 in words is "two trillion, four hundred thirty-nine billion, three hundred forty-five million, seven hundred sixty-eight thousand, nine hundred seventeen".