667388883719 has 2 divisors, whose sum is σ = 667388883720. Its totient is φ = 667388883718.

The previous prime is 667388883713. The next prime is 667388883751. The reversal of 667388883719 is 917388883766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667388883719 - 2⁸ = 667388883463 is a prime.

It is a super-2 number, since 2×667388883719² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667388883713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333694441859 + 333694441860.

It is an arithmetic number, because the mean of its divisors is an integer number (333694441860).

Almost surely, 2^667388883719 is an apocalyptic number.

667388883719 is a deficient number, since it is larger than the sum of its proper divisors (1).

667388883719 is an equidigital number, since it uses as much as digits as its factorization.

667388883719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 585252864, while the sum is 74.

The spelling of 667388883719 in words is "six hundred sixty-seven billion, three hundred eighty-eight million, eight hundred eighty-three thousand, seven hundred nineteen".