6868936643 has 8 divisors (see below), whose sum is σ = 6896741280. Its totient is φ = 6841169280.

The previous prime is 6868936567. The next prime is 6868936651. The reversal of 6868936643 is 3466398686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6868936643 - 2¹⁸ = 6868674499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868936043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394853 + ... + 411881.

It is an arithmetic number, because the mean of its divisors is an integer number (862092660).

Almost surely, 2^6868936643 is an apocalyptic number.

6868936643 is a deficient number, since it is larger than the sum of its proper divisors (27804637).

6868936643 is a wasteful number, since it uses less digits than its factorization.

6868936643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18637.

The product of its digits is 26873856, while the sum is 59.

The square root of 6868936643 is about 82879.0482751823. The cubic root of 6868936643 is about 1900.9170681855.

The spelling of 6868936643 in words is "six billion, eight hundred sixty-eight million, nine hundred thirty-six thousand, six hundred forty-three".