511457465317 has 2 divisors, whose sum is σ = 511457465318. Its totient is φ = 511457465316.

The previous prime is 511457465279. The next prime is 511457465381. The reversal of 511457465317 is 713564754115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467289819396 + 44167645921 = 683586^2 + 210161^2 .

It is a cyclic number.

It is not a de Polignac number, because 511457465317 - 2¹¹ = 511457463269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511457462317) 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, 255728732658 + 255728732659.

It is an arithmetic number, because the mean of its divisors is an integer number (255728732659).

Almost surely, 2^511457465317 is an apocalyptic number.

It is an amenable number.

511457465317 is a deficient number, since it is larger than the sum of its proper divisors (1).

511457465317 is an equidigital number, since it uses as much as digits as its factorization.

511457465317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764000, while the sum is 49.

The spelling of 511457465317 in words is "five hundred eleven billion, four hundred fifty-seven million, four hundred sixty-five thousand, three hundred seventeen".