510713272781 has 2 divisors, whose sum is σ = 510713272782. Its totient is φ = 510713272780.

The previous prime is 510713272747. The next prime is 510713272837. The reversal of 510713272781 is 187272317015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394520915881 + 116192356900 = 628109^2 + 340870^2 .

It is a cyclic number.

It is not a de Polignac number, because 510713272781 - 2¹⁴ = 510713256397 is a prime.

It is a super-2 number, since 2×510713272781² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (510713272681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255356636390 + 255356636391.

It is an arithmetic number, because the mean of its divisors is an integer number (255356636391).

Almost surely, 2^510713272781 is an apocalyptic number.

It is an amenable number.

510713272781 is a deficient number, since it is larger than the sum of its proper divisors (1).

510713272781 is an equidigital number, since it uses as much as digits as its factorization.

510713272781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 44.

Adding to 510713272781 its reverse (187272317015), we get a palindrome (697985589796).

The spelling of 510713272781 in words is "five hundred ten billion, seven hundred thirteen million, two hundred seventy-two thousand, seven hundred eighty-one".