619717966319 has 2 divisors, whose sum is σ = 619717966320. Its totient is φ = 619717966318.

The previous prime is 619717966267. The next prime is 619717966321. The reversal of 619717966319 is 913669717916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 619717966319 - 2¹² = 619717962223 is a prime.

It is a super-2 number, since 2×619717966319² (a number of 24 digits) contains 22 as substring.

Together with 619717966321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (619717966379) 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, 309858983159 + 309858983160.

It is an arithmetic number, because the mean of its divisors is an integer number (309858983160).

Almost surely, 2^619717966319 is an apocalyptic number.

619717966319 is a deficient number, since it is larger than the sum of its proper divisors (1).

619717966319 is an equidigital number, since it uses as much as digits as its factorization.

619717966319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23147208, while the sum is 65.

The spelling of 619717966319 in words is "six hundred nineteen billion, seven hundred seventeen million, nine hundred sixty-six thousand, three hundred nineteen".