513666402254339 has 2 divisors, whose sum is σ = 513666402254340. Its totient is φ = 513666402254338.

The previous prime is 513666402254281. The next prime is 513666402254351. The reversal of 513666402254339 is 933452204666315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513666402254339 - 2⁴⁰ = 512566890626563 is a prime.

It is not a weakly prime, because it can be changed into another prime (513666402554339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256833201127169 + 256833201127170.

It is an arithmetic number, because the mean of its divisors is an integer number (256833201127170).

Almost surely, 2^{513666402254339} is an apocalyptic number.

513666402254339 is a deficient number, since it is larger than the sum of its proper divisors (1).

513666402254339 is an equidigital number, since it uses as much as digits as its factorization.

513666402254339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83980800, while the sum is 59.

The spelling of 513666402254339 in words is "five hundred thirteen trillion, six hundred sixty-six billion, four hundred two million, two hundred fifty-four thousand, three hundred thirty-nine".