6789681216 has 84 divisors (see below), whose sum is σ = 19477890432. Its totient is φ = 2261309184.

The previous prime is 6789681211. The next prime is 6789681253. The reversal of 6789681216 is 6121869876.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6789681211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 783081 + ... + 791703.

It is an arithmetic number, because the mean of its divisors is an integer number (231879648).

Almost surely, 2^6789681216 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 6789681216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9738945216).

6789681216 is an abundant number, since it is smaller than the sum of its proper divisors (12688209216).

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

6789681216 is a wasteful number, since it uses less digits than its factorization.

6789681216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008 (or 9995 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 6789681216 is about 82399.5219403608. The cubic root of 6789681216 is about 1893.5776895929.

The spelling of 6789681216 in words is "six billion, seven hundred eighty-nine million, six hundred eighty-one thousand, two hundred sixteen".