513926111273 has 2 divisors, whose sum is σ = 513926111274. Its totient is φ = 513926111272.

The previous prime is 513926111233. The next prime is 513926111299. The reversal of 513926111273 is 372111629315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480626065984 + 33300045289 = 693272^2 + 182483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513926111273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 513926111273.

It is not a weakly prime, because it can be changed into another prime (513926111233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256963055636 + 256963055637.

It is an arithmetic number, because the mean of its divisors is an integer number (256963055637).

Almost surely, 2^513926111273 is an apocalyptic number.

It is an amenable number.

513926111273 is a deficient number, since it is larger than the sum of its proper divisors (1).

513926111273 is an equidigital number, since it uses as much as digits as its factorization.

513926111273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The spelling of 513926111273 in words is "five hundred thirteen billion, nine hundred twenty-six million, one hundred eleven thousand, two hundred seventy-three".