6678812826 has 64 divisors (see below), whose sum is σ = 16970204160. Its totient is φ = 1907316720.

The previous prime is 6678812783. The next prime is 6678812827. The reversal of 6678812826 is 6282188766.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6678812827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1392805 + ... + 1397591.

It is an arithmetic number, because the mean of its divisors is an integer number (265159440).

Almost surely, 2^6678812826 is an apocalyptic number.

6678812826 is an abundant number, since it is smaller than the sum of its proper divisors (10291391334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6678812826 is a wasteful number, since it uses less digits than its factorization.

6678812826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496 (or 8490 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 6678812826 is about 81724.0039767999. The cubic root of 6678812826 is about 1883.2143616669.

The spelling of 6678812826 in words is "six billion, six hundred seventy-eight million, eight hundred twelve thousand, eight hundred twenty-six".