6768008647 has 2 divisors, whose sum is σ = 6768008648. Its totient is φ = 6768008646.

The previous prime is 6768008633. The next prime is 6768008699. The reversal of 6768008647 is 7468008676.

It is an a-pointer prime, because the next prime (6768008699) can be obtained adding 6768008647 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6768008647 - 2⁷ = 6768008519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6768008594 and 6768008603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6768008147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3384004323 + 3384004324.

It is an arithmetic number, because the mean of its divisors is an integer number (3384004324).

Almost surely, 2^6768008647 is an apocalyptic number.

6768008647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6768008647 is an equidigital number, since it uses as much as digits as its factorization.

6768008647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The square root of 6768008647 is about 82267.9077587366. The cubic root of 6768008647 is about 1891.5607841150.

The spelling of 6768008647 in words is "six billion, seven hundred sixty-eight million, eight thousand, six hundred forty-seven".