512897543569 has 2 divisors, whose sum is σ = 512897543570. Its totient is φ = 512897543568.

The previous prime is 512897543567. The next prime is 512897543617. The reversal of 512897543569 is 965345798215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385562757969 + 127334785600 = 620937^2 + 356840^2 .

It is a cyclic number.

It is not a de Polignac number, because 512897543569 - 2¹ = 512897543567 is a prime.

It is a super-2 number, since 2×512897543569² (a number of 24 digits) contains 22 as substring.

Together with 512897543567, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 512897543569.

It is not a weakly prime, because it can be changed into another prime (512897543567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256448771784 + 256448771785.

It is an arithmetic number, because the mean of its divisors is an integer number (256448771785).

Almost surely, 2^512897543569 is an apocalyptic number.

It is an amenable number.

512897543569 is a deficient number, since it is larger than the sum of its proper divisors (1).

512897543569 is an equidigital number, since it uses as much as digits as its factorization.

512897543569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 64.

The spelling of 512897543569 in words is "five hundred twelve billion, eight hundred ninety-seven million, five hundred forty-three thousand, five hundred sixty-nine".