512278292209 has 2 divisors, whose sum is σ = 512278292210. Its totient is φ = 512278292208.

The previous prime is 512278292203. The next prime is 512278292261. The reversal of 512278292209 is 902292872215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 505907857984 + 6370434225 = 711272^2 + 79815^2 .

It is a cyclic number.

It is not a de Polignac number, because 512278292209 - 2³³ = 503688357617 is a prime.

It is not a weakly prime, because it can be changed into another prime (512278292203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256139146104 + 256139146105.

It is an arithmetic number, because the mean of its divisors is an integer number (256139146105).

Almost surely, 2^512278292209 is an apocalyptic number.

It is an amenable number.

512278292209 is a deficient number, since it is larger than the sum of its proper divisors (1).

512278292209 is an equidigital number, since it uses as much as digits as its factorization.

512278292209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 512278292209 in words is "five hundred twelve billion, two hundred seventy-eight million, two hundred ninety-two thousand, two hundred nine".