6816733780747 has 8 divisors (see below), whose sum is σ = 7692865709040. Its totient is φ = 5983339995360.

The previous prime is 6816733780741. The next prime is 6816733780751. The reversal of 6816733780747 is 7470873376186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6816733780747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6816733780741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10684535388 + ... + 10684536025.

It is an arithmetic number, because the mean of its divisors is an integer number (961608213630).

Almost surely, 2^{6816733780747} is an apocalyptic number.

6816733780747 is a deficient number, since it is larger than the sum of its proper divisors (876131928293).

6816733780747 is a wasteful number, since it uses less digits than its factorization.

6816733780747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21369071453.

The product of its (nonzero) digits is 199148544, while the sum is 67.

The spelling of 6816733780747 in words is "six trillion, eight hundred sixteen billion, seven hundred thirty-three million, seven hundred eighty thousand, seven hundred forty-seven".