512346819161 has 2 divisors, whose sum is σ = 512346819162. Its totient is φ = 512346819160.

The previous prime is 512346819143. The next prime is 512346819233. The reversal of 512346819161 is 161918643215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511976025625 + 370793536 = 715525^2 + 19256^2 .

It is a cyclic number.

It is not a de Polignac number, because 512346819161 - 2¹⁸ = 512346557017 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 (512346815161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256173409580 + 256173409581.

It is an arithmetic number, because the mean of its divisors is an integer number (256173409581).

Almost surely, 2^512346819161 is an apocalyptic number.

It is an amenable number.

512346819161 is a deficient number, since it is larger than the sum of its proper divisors (1).

512346819161 is an equidigital number, since it uses as much as digits as its factorization.

512346819161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The spelling of 512346819161 in words is "five hundred twelve billion, three hundred forty-six million, eight hundred nineteen thousand, one hundred sixty-one".