613760716861 has 2 divisors, whose sum is σ = 613760716862. Its totient is φ = 613760716860.

The previous prime is 613760716697. The next prime is 613760716909. The reversal of 613760716861 is 168617067316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333628691236 + 280132025625 = 577606^2 + 529275^2 .

It is a cyclic number.

It is not a de Polignac number, because 613760716861 - 2²¹ = 613758619709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613760716799 and 613760716808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613760713861) 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, 306880358430 + 306880358431.

It is an arithmetic number, because the mean of its divisors is an integer number (306880358431).

Almost surely, 2^613760716861 is an apocalyptic number.

It is an amenable number.

613760716861 is a deficient number, since it is larger than the sum of its proper divisors (1).

613760716861 is an equidigital number, since it uses as much as digits as its factorization.

613760716861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 613760716861 in words is "six hundred thirteen billion, seven hundred sixty million, seven hundred sixteen thousand, eight hundred sixty-one".