520634486717 has 2 divisors, whose sum is σ = 520634486718. Its totient is φ = 520634486716.

The previous prime is 520634486699. The next prime is 520634486741. The reversal of 520634486717 is 717684436025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401881191481 + 118753295236 = 633941^2 + 344606^2 .

It is a cyclic number.

It is not a de Polignac number, because 520634486717 - 2¹⁴ = 520634470333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520634486747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260317243358 + 260317243359.

It is an arithmetic number, because the mean of its divisors is an integer number (260317243359).

Almost surely, 2^520634486717 is an apocalyptic number.

It is an amenable number.

520634486717 is a deficient number, since it is larger than the sum of its proper divisors (1).

520634486717 is an equidigital number, since it uses as much as digits as its factorization.

520634486717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 520634486717 in words is "five hundred twenty billion, six hundred thirty-four million, four hundred eighty-six thousand, seven hundred seventeen".