520703376761 has 2 divisors, whose sum is σ = 520703376762. Its totient is φ = 520703376760.

The previous prime is 520703376733. The next prime is 520703376779. The reversal of 520703376761 is 167673307025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302768459536 + 217934917225 = 550244^2 + 466835^2 .

It is a cyclic number.

It is not a de Polignac number, because 520703376761 - 2¹⁰ = 520703375737 is a prime.

It is a super-2 number, since 2×520703376761² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520703376731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260351688380 + 260351688381.

It is an arithmetic number, because the mean of its divisors is an integer number (260351688381).

Almost surely, 2^520703376761 is an apocalyptic number.

It is an amenable number.

520703376761 is a deficient number, since it is larger than the sum of its proper divisors (1).

520703376761 is an equidigital number, since it uses as much as digits as its factorization.

520703376761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 47.

The spelling of 520703376761 in words is "five hundred twenty billion, seven hundred three million, three hundred seventy-six thousand, seven hundred sixty-one".