613760716909 has 2 divisors, whose sum is σ = 613760716910. Its totient is φ = 613760716908.

The previous prime is 613760716861. The next prime is 613760716927. The reversal of 613760716909 is 909617067316.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500648229225 + 113112487684 = 707565^2 + 336322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613760716909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 613760716909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613760716999) 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, 306880358454 + 306880358455.

It is an arithmetic number, because the mean of its divisors is an integer number (306880358455).

Almost surely, 2^613760716909 is an apocalyptic number.

It is an amenable number.

613760716909 is a deficient number, since it is larger than the sum of its proper divisors (1).

613760716909 is an equidigital number, since it uses as much as digits as its factorization.

613760716909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

It can be divided in two parts, 6137607 and 16909, that added together give a palindrome (6154516).

The spelling of 613760716909 in words is "six hundred thirteen billion, seven hundred sixty million, seven hundred sixteen thousand, nine hundred nine".