6668007743 has 2 divisors, whose sum is σ = 6668007744. Its totient is φ = 6668007742.

The previous prime is 6668007739. The next prime is 6668007757. The reversal of 6668007743 is 3477008666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6668007743 - 2² = 6668007739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6668007793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3334003871 + 3334003872.

It is an arithmetic number, because the mean of its divisors is an integer number (3334003872).

Almost surely, 2^6668007743 is an apocalyptic number.

6668007743 is a deficient number, since it is larger than the sum of its proper divisors (1).

6668007743 is an equidigital number, since it uses as much as digits as its factorization.

6668007743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 6668007743 is about 81657.8700616175. The cubic root of 6668007743 is about 1882.1982494155.

The spelling of 6668007743 in words is "six billion, six hundred sixty-eight million, seven thousand, seven hundred forty-three".