6810780068 has 12 divisors (see below), whose sum is σ = 11923896012. Its totient is φ = 3403952640.

The previous prime is 6810780059. The next prime is 6810780077. The reversal of 6810780068 is 8600870186.

It is an interprime number because it is at equal distance from previous prime (6810780059) and next prime (6810780077).

It can be written as a sum of positive squares in 2 ways, for example, as 1233976384 + 5576803684 = 35128^2 + 74678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348653 + ... + 367668.

It is an arithmetic number, because the mean of its divisors is an integer number (993658001).

Almost surely, 2^6810780068 is an apocalyptic number.

It is an amenable number.

6810780068 is a deficient number, since it is larger than the sum of its proper divisors (5113115944).

6810780068 is a wasteful number, since it uses less digits than its factorization.

6810780068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718702 (or 718700 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 6810780068 is about 82527.4503907639. The cubic root of 6810780068 is about 1895.5370846254.

The spelling of 6810780068 in words is "six billion, eight hundred ten million, seven hundred eighty thousand, sixty-eight".