7668217307 has 2 divisors, whose sum is σ = 7668217308. Its totient is φ = 7668217306.

The previous prime is 7668217303. The next prime is 7668217327. The reversal of 7668217307 is 7037128667.

7668217307 is digitally balanced in base 3, 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 7668217307 - 2² = 7668217303 is a prime.

It is not a weakly prime, because it can be changed into another prime (7668217303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834108653 + 3834108654.

It is an arithmetic number, because the mean of its divisors is an integer number (3834108654).

Almost surely, 2^7668217307 is an apocalyptic number.

7668217307 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668217307 is an equidigital number, since it uses as much as digits as its factorization.

7668217307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 7668217307 is about 87568.3579096925. The cubic root of 7668217307 is about 1971.9601631780.

The spelling of 7668217307 in words is "seven billion, six hundred sixty-eight million, two hundred seventeen thousand, three hundred seven".