6800816679 has 4 divisors (see below), whose sum is σ = 9067755576. Its totient is φ = 4533877784.

The previous prime is 6800816653. The next prime is 6800816681. The reversal of 6800816679 is 9766180086.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6800816679 - 2⁵ = 6800816647 is a prime.

It is a super-2 number, since 2×6800816679² = 92502215002729178082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6800811679) 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 in 3 ways as a sum of consecutive naturals, for example, 1133469444 + ... + 1133469449.

It is an arithmetic number, because the mean of its divisors is an integer number (2266938894).

Almost surely, 2^6800816679 is an apocalyptic number.

6800816679 is a deficient number, since it is larger than the sum of its proper divisors (2266938897).

6800816679 is a wasteful number, since it uses less digits than its factorization.

6800816679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266938896.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 6800816679 is about 82467.0642074762. The cubic root of 6800816679 is about 1894.6123158530.

The spelling of 6800816679 in words is "six billion, eight hundred million, eight hundred sixteen thousand, six hundred seventy-nine".