6868006868 has 36 divisors (see below), whose sum is σ = 12854558556. Its totient is φ = 3199680000.

The previous prime is 6868006813. The next prime is 6868006891. The reversal of 6868006868 is 8686008686.

It can be written as a sum of positive squares in 6 ways, for example, as 5022273424 + 1845733444 = 70868^2 + 42962^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688718 + ... + 698618.

It is an arithmetic number, because the mean of its divisors is an integer number (357071071).

Almost surely, 2^6868006868 is an apocalyptic number.

6868006868 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6868006868 is a deficient number, since it is larger than the sum of its proper divisors (5986551688).

6868006868 is a wasteful number, since it uses less digits than its factorization.

6868006868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124 (or 10021 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The square root of 6868006868 is about 82873.4388570910. The cubic root of 6868006868 is about 1900.8312953305.

It can be divided in two parts, 686800 and 6868, that multiplied together give a square (4716942400 = 68680²).

The spelling of 6868006868 in words is "six billion, eight hundred sixty-eight million, six thousand, eight hundred sixty-eight".