6858673691 has 2 divisors, whose sum is σ = 6858673692. Its totient is φ = 6858673690.

The previous prime is 6858673687. The next prime is 6858673693. The reversal of 6858673691 is 1963768586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6858673691 - 2² = 6858673687 is a prime.

Together with 6858673693, 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 6858673691.

It is not a weakly prime, because it can be changed into another prime (6858673693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429336845 + 3429336846.

It is an arithmetic number, because the mean of its divisors is an integer number (3429336846).

Almost surely, 2^6858673691 is an apocalyptic number.

6858673691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6858673691 is an equidigital number, since it uses as much as digits as its factorization.

6858673691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 59.

The square root of 6858673691 is about 82817.1098928235. The cubic root of 6858673691 is about 1899.9698694206.

The spelling of 6858673691 in words is "six billion, eight hundred fifty-eight million, six hundred seventy-three thousand, six hundred ninety-one".