6681278000 has 160 divisors (see below), whose sum is σ = 16842047040. Its totient is φ = 2561280000.

The previous prime is 6681277991. The next prime is 6681278003. The reversal of 6681278000 is 8721866.

It is not an unprimeable number, because it can be changed into a prime (6681278003) 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, 4837310 + ... + 4838690.

It is an arithmetic number, because the mean of its divisors is an integer number (105262794).

Almost surely, 2^6681278000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6681278000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8421023520).

6681278000 is an abundant number, since it is smaller than the sum of its proper divisors (10160769040).

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

6681278000 is a wasteful number, since it uses less digits than its factorization.

6681278000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 6681278000 is about 81739.0848982297. The cubic root of 6681278000 is about 1883.4460335791.

Adding to 6681278000 its reverse (8721866), we get a palindrome (6689999866).

The spelling of 6681278000 in words is "six billion, six hundred eighty-one million, two hundred seventy-eight thousand".