512897543857 has 2 divisors, whose sum is σ = 512897543858. Its totient is φ = 512897543856.

The previous prime is 512897543843. The next prime is 512897544013. The reversal of 512897543857 is 758345798215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509808852081 + 3088691776 = 714009^2 + 55576^2 .

It is a cyclic number.

It is not a de Polignac number, because 512897543857 - 2¹⁵ = 512897511089 is a prime.

It is not a weakly prime, because it can be changed into another prime (512894543857) 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, 256448771928 + 256448771929.

It is an arithmetic number, because the mean of its divisors is an integer number (256448771929).

Almost surely, 2^512897543857 is an apocalyptic number.

It is an amenable number.

512897543857 is a deficient number, since it is larger than the sum of its proper divisors (1).

512897543857 is an equidigital number, since it uses as much as digits as its factorization.

512897543857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672000, while the sum is 64.

The spelling of 512897543857 in words is "five hundred twelve billion, eight hundred ninety-seven million, five hundred forty-three thousand, eight hundred fifty-seven".