680285005513 has 2 divisors, whose sum is σ = 680285005514. Its totient is φ = 680285005512.

The previous prime is 680285005511. The next prime is 680285005553. The reversal of 680285005513 is 315500582086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680026181769 + 258823744 = 824637^2 + 16088^2 .

It is a cyclic number.

It is not a de Polignac number, because 680285005513 - 2¹ = 680285005511 is a prime.

Together with 680285005511, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 680285005513.

It is not a weakly prime, because it can be changed into another prime (680285005511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340142502756 + 340142502757.

It is an arithmetic number, because the mean of its divisors is an integer number (340142502757).

Almost surely, 2^680285005513 is an apocalyptic number.

It is an amenable number.

680285005513 is a deficient number, since it is larger than the sum of its proper divisors (1).

680285005513 is an equidigital number, since it uses as much as digits as its factorization.

680285005513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 43.

Adding to 680285005513 its reverse (315500582086), we get a palindrome (995785587599).

The spelling of 680285005513 in words is "six hundred eighty billion, two hundred eighty-five million, five thousand, five hundred thirteen".