6681289884399 has 36 divisors (see below), whose sum is σ = 11000234405160. Its totient is φ = 3895164936000.

The previous prime is 6681289884377. The next prime is 6681289884407. The reversal of 6681289884399 is 9934889821866.

6681289884399 is a `hidden beast` number, since 6 + 6 + 81 + 28 + 9 + 88 + 439 + 9 = 666.

It is not a de Polignac number, because 6681289884399 - 2⁷ = 6681289884271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681289885399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115568352 + ... + 115626149.

It is an arithmetic number, because the mean of its divisors is an integer number (305562066810).

Almost surely, 2^{6681289884399} is an apocalyptic number.

6681289884399 is a deficient number, since it is larger than the sum of its proper divisors (4318944520761).

6681289884399 is a wasteful number, since it uses less digits than its factorization.

6681289884399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231194552 (or 231194536 counting only the distinct ones).

The product of its digits is 2579890176, while the sum is 81.

The spelling of 6681289884399 in words is "six trillion, six hundred eighty-one billion, two hundred eighty-nine million, eight hundred eighty-four thousand, three hundred ninety-nine".