2168239907 has 2 divisors, whose sum is σ = 2168239908. Its totient is φ = 2168239906.

The previous prime is 2168239901. The next prime is 2168239949. The reversal of 2168239907 is 7099328612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2168239907 - 2⁸ = 2168239651 is a prime.

It is not a weakly prime, because it can be changed into another prime (2168239901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084119953 + 1084119954.

It is an arithmetic number, because the mean of its divisors is an integer number (1084119954).

Almost surely, 2^2168239907 is an apocalyptic number.

2168239907 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168239907 is an equidigital number, since it uses as much as digits as its factorization.

2168239907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 2168239907 is about 46564.3630580297. The cubic root of 2168239907 is about 1294.3024636018.

The spelling of 2168239907 in words is "two billion, one hundred sixty-eight million, two hundred thirty-nine thousand, nine hundred seven".