6810782208 has 80 divisors (see below), whose sum is σ = 18184193280. Its totient is φ = 2265276416.

The previous prime is 6810782177. The next prime is 6810782213. The reversal of 6810782208 is 8022870186.

It is a self number, because there is not a number n which added to its sum of digits gives 6810782208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731116 + ... + 740372.

It is an arithmetic number, because the mean of its divisors is an integer number (227302416).

Almost surely, 2^6810782208 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 6810782208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9092096640).

6810782208 is an abundant number, since it is smaller than the sum of its proper divisors (11373411072).

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

6810782208 is an equidigital number, since it uses as much as digits as its factorization.

6810782208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9757 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 6810782208 is about 82527.4633561459. The cubic root of 6810782208 is about 1895.5372831562.

The spelling of 6810782208 in words is "six billion, eight hundred ten million, seven hundred eighty-two thousand, two hundred eight".