6684274687 has 2 divisors, whose sum is σ = 6684274688. Its totient is φ = 6684274686.

The previous prime is 6684274657. The next prime is 6684274703. The reversal of 6684274687 is 7864724866.

6684274687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6684274687 - 2²⁷ = 6550056959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6684274657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342137343 + 3342137344.

It is an arithmetic number, because the mean of its divisors is an integer number (3342137344).

Almost surely, 2^6684274687 is an apocalyptic number.

6684274687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684274687 is an equidigital number, since it uses as much as digits as its factorization.

6684274687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21676032, while the sum is 58.

The square root of 6684274687 is about 81757.4136516072. The cubic root of 6684274687 is about 1883.7275792467.

The spelling of 6684274687 in words is "six billion, six hundred eighty-four million, two hundred seventy-four thousand, six hundred eighty-seven".