3138668719 has 2 divisors, whose sum is σ = 3138668720. Its totient is φ = 3138668718.

The previous prime is 3138668717. The next prime is 3138668737. The reversal of 3138668719 is 9178668313.

3138668719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3138668719 - 2¹ = 3138668717 is a prime.

It is a super-2 number, since 2×3138668719² = 19702482655258201922, which contains 22 as substring.

Together with 3138668717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3138668713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569334359 + 1569334360.

It is an arithmetic number, because the mean of its divisors is an integer number (1569334360).

Almost surely, 2^3138668719 is an apocalyptic number.

3138668719 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138668719 is an equidigital number, since it uses as much as digits as its factorization.

3138668719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 3138668719 is about 56023.8227810277. The cubic root of 3138668719 is about 1464.1373728616.

The spelling of 3138668719 in words is "three billion, one hundred thirty-eight million, six hundred sixty-eight thousand, seven hundred nineteen".