513324662393 has 2 divisors, whose sum is σ = 513324662394. Its totient is φ = 513324662392.

The previous prime is 513324662359. The next prime is 513324662419. The reversal of 513324662393 is 393266423315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469152392809 + 44172269584 = 684947^2 + 210172^2 .

It is a cyclic number.

It is not a de Polignac number, because 513324662393 - 2¹⁸ = 513324400249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (513324662303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256662331196 + 256662331197.

It is an arithmetic number, because the mean of its divisors is an integer number (256662331197).

Almost surely, 2^513324662393 is an apocalyptic number.

It is an amenable number.

513324662393 is a deficient number, since it is larger than the sum of its proper divisors (1).

513324662393 is an equidigital number, since it uses as much as digits as its factorization.

513324662393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 47.

The spelling of 513324662393 in words is "five hundred thirteen billion, three hundred twenty-four million, six hundred sixty-two thousand, three hundred ninety-three".