7668200609 has 2 divisors, whose sum is σ = 7668200610. Its totient is φ = 7668200608.

The previous prime is 7668200593. The next prime is 7668200611. The reversal of 7668200609 is 9060028667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7657125025 + 11075584 = 87505^2 + 3328^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668200609 - 2⁴ = 7668200593 is a prime.

Together with 7668200611, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7668200609.

It is not a weakly prime, because it can be changed into another prime (7668200009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834100304 + 3834100305.

It is an arithmetic number, because the mean of its divisors is an integer number (3834100305).

Almost surely, 2^7668200609 is an apocalyptic number.

It is an amenable number.

7668200609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668200609 is an equidigital number, since it uses as much as digits as its factorization.

7668200609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 7668200609 is about 87568.2625669826. The cubic root of 7668200609 is about 1971.9587318233.

The spelling of 7668200609 in words is "seven billion, six hundred sixty-eight million, two hundred thousand, six hundred nine".