512683386217 has 2 divisors, whose sum is σ = 512683386218. Its totient is φ = 512683386216.

The previous prime is 512683386211. The next prime is 512683386227. The reversal of 512683386217 is 712683386215.

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., 508898183641 + 3785202576 = 713371^2 + 61524^2 .

It is a cyclic number.

It is not a de Polignac number, because 512683386217 - 2³ = 512683386209 is a prime.

It is not a weakly prime, because it can be changed into another prime (512683386211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256341693108 + 256341693109.

It is an arithmetic number, because the mean of its divisors is an integer number (256341693109).

Almost surely, 2^512683386217 is an apocalyptic number.

It is an amenable number.

512683386217 is a deficient number, since it is larger than the sum of its proper divisors (1).

512683386217 is an equidigital number, since it uses as much as digits as its factorization.

512683386217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The spelling of 512683386217 in words is "five hundred twelve billion, six hundred eighty-three million, three hundred eighty-six thousand, two hundred seventeen".