6718446713812 has 6 divisors (see below), whose sum is σ = 11757281749178. Its totient is φ = 3359223356904.

The previous prime is 6718446713809. The next prime is 6718446713813. The reversal of 6718446713812 is 2183176448176.

It can be written as a sum of positive squares in only one way, i.e., 4666092492996 + 2052354220816 = 2160114^2 + 1432604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718446713813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839805839223 + ... + 839805839230.

Almost surely, 2^{6718446713812} is an apocalyptic number.

It is an amenable number.

6718446713812 is a deficient number, since it is larger than the sum of its proper divisors (5038835035366).

6718446713812 is a wasteful number, since it uses less digits than its factorization.

6718446713812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679611678457 (or 1679611678455 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The spelling of 6718446713812 in words is "six trillion, seven hundred eighteen billion, four hundred forty-six million, seven hundred thirteen thousand, eight hundred twelve".