662378397719 has 2 divisors, whose sum is σ = 662378397720. Its totient is φ = 662378397718.

The previous prime is 662378397683. The next prime is 662378397721. The reversal of 662378397719 is 917793873266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662378397719 - 2⁸ = 662378397463 is a prime.

It is a super-2 number, since 2×662378397719² (a number of 24 digits) contains 22 as substring.

Together with 662378397721, 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 (662378390719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331189198859 + 331189198860.

It is an arithmetic number, because the mean of its divisors is an integer number (331189198860).

Almost surely, 2^662378397719 is an apocalyptic number.

662378397719 is a deficient number, since it is larger than the sum of its proper divisors (1).

662378397719 is an equidigital number, since it uses as much as digits as its factorization.

662378397719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144027072, while the sum is 68.

The spelling of 662378397719 in words is "six hundred sixty-two billion, three hundred seventy-eight million, three hundred ninety-seven thousand, seven hundred nineteen".