6687008399243 has 2 divisors, whose sum is σ = 6687008399244. Its totient is φ = 6687008399242.

The previous prime is 6687008399221. The next prime is 6687008399251. The reversal of 6687008399243 is 3429938007866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6687008399243 - 2⁶ = 6687008399179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6687008399243.

It is not a weakly prime, because it can be changed into another prime (6687008399263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343504199621 + 3343504199622.

It is an arithmetic number, because the mean of its divisors is an integer number (3343504199622).

Almost surely, 2^{6687008399243} is an apocalyptic number.

6687008399243 is a deficient number, since it is larger than the sum of its proper divisors (1).

6687008399243 is an equidigital number, since it uses as much as digits as its factorization.

6687008399243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94058496, while the sum is 65.

The spelling of 6687008399243 in words is "six trillion, six hundred eighty-seven billion, eight million, three hundred ninety-nine thousand, two hundred forty-three".