6813311744 has 18 divisors (see below), whose sum is σ = 13600009500. Its totient is φ = 3406655744.

The previous prime is 6813311717. The next prime is 6813311753. The reversal of 6813311744 is 4471133186.

It is a junction number, because it is equal to n+sod(n) for n = 6813311698 and 6813311707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13306994 + ... + 13307505.

Almost surely, 2^6813311744 is an apocalyptic number.

6813311744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6813311744 is a deficient number, since it is larger than the sum of its proper divisors (6786697756).

6813311744 is an equidigital number, since it uses as much as digits as its factorization.

6813311744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26614515 (or 26614501 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 6813311744 is about 82542.7873529844. The cubic root of 6813311744 is about 1895.7719226915.

The spelling of 6813311744 in words is "six billion, eight hundred thirteen million, three hundred eleven thousand, seven hundred forty-four".