6816766976 has 44 divisors (see below), whose sum is σ = 13702536120. Its totient is φ = 3389460480.

The previous prime is 6816766973. The next prime is 6816766987. The reversal of 6816766976 is 6796676186.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6816766973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166955 + ... + 203733.

Almost surely, 2^6816766976 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 6816766976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6851268060).

6816766976 is an abundant number, since it is smaller than the sum of its proper divisors (6885769144).

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

6816766976 is a wasteful number, since it uses less digits than its factorization.

6816766976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36980 (or 36962 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 62.

The square root of 6816766976 is about 82563.7146451151. The cubic root of 6816766976 is about 1896.0923358807.

The spelling of 6816766976 in words is "six billion, eight hundred sixteen million, seven hundred sixty-six thousand, nine hundred seventy-six".