6919782768 has 120 divisors (see below), whose sum is σ = 19558331520. Its totient is φ = 2283793920.

The previous prime is 6919782703. The next prime is 6919782803. The reversal of 6919782768 is 8672879196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7353178 + ... + 7354118.

It is an arithmetic number, because the mean of its divisors is an integer number (162986096).

Almost surely, 2^6919782768 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 6919782768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9779165760).

6919782768 is an abundant number, since it is smaller than the sum of its proper divisors (12638548752).

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

6919782768 is a wasteful number, since it uses less digits than its factorization.

6919782768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1398 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The square root of 6919782768 is about 83185.2316700507. The cubic root of 6919782768 is about 1905.5959463946.

The spelling of 6919782768 in words is "six billion, nine hundred nineteen million, seven hundred eighty-two thousand, seven hundred sixty-eight".