6684103813 has 4 divisors (see below), whose sum is σ = 6706916748. Its totient is φ = 6661290880.

The previous prime is 6684103801. The next prime is 6684103819. The reversal of 6684103813 is 3183014866.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3183014866 = 2 ⋅1591507433.

It can be written as a sum of positive squares in 2 ways, for example, as 5258135169 + 1425968644 = 72513^2 + 37762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6684103813 is a prime.

It is a super-2 number, since 2×6684103813² = 89354487565922277938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684103819) 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, 11406028 + ... + 11406613.

It is an arithmetic number, because the mean of its divisors is an integer number (1676729187).

Almost surely, 2^6684103813 is an apocalyptic number.

It is an amenable number.

6684103813 is a deficient number, since it is larger than the sum of its proper divisors (22812935).

6684103813 is a wasteful number, since it uses less digits than its factorization.

6684103813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22812934.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 6684103813 is about 81756.3686387795. The cubic root of 6684103813 is about 1883.7115275022.

The spelling of 6684103813 in words is "six billion, six hundred eighty-four million, one hundred three thousand, eight hundred thirteen".