6678888766 has 64 divisors (see below), whose sum is σ = 11400238080. Its totient is φ = 2908224000.

The previous prime is 6678888751. The next prime is 6678888779.

6678888766 is nontrivially palindromic in base 10.

6678888766 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 6678888695 and 6678888704.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 21755185 + ... + 21755491.

It is an arithmetic number, because the mean of its divisors is an integer number (178128720).

Almost surely, 2^6678888766 is an apocalyptic number.

6678888766 is a deficient number, since it is larger than the sum of its proper divisors (4721349314).

6678888766 is a wasteful number, since it uses less digits than its factorization.

6678888766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 260112384, while the sum is 70.

The square root of 6678888766 is about 81724.4685880551. The cubic root of 6678888766 is about 1883.2214992007.

The spelling of 6678888766 in words is "six billion, six hundred seventy-eight million, eight hundred eighty-eight thousand, seven hundred sixty-six".