3368718721847 has 2 divisors, whose sum is σ = 3368718721848. Its totient is φ = 3368718721846.

The previous prime is 3368718721829. The next prime is 3368718721913. The reversal of 3368718721847 is 7481278178633.

3368718721847 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3368718721847 - 2⁸ = 3368718721591 is a prime.

It is a super-2 number, since 2×3368718721847² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3368718723847) 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, 1684359360923 + 1684359360924.

It is an arithmetic number, because the mean of its divisors is an integer number (1684359360924).

Almost surely, 2^{3368718721847} is an apocalyptic number.

3368718721847 is a deficient number, since it is larger than the sum of its proper divisors (1).

3368718721847 is an equidigital number, since it uses as much as digits as its factorization.

3368718721847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75866112, while the sum is 65.

The spelling of 3368718721847 in words is "three trillion, three hundred sixty-eight billion, seven hundred eighteen million, seven hundred twenty-one thousand, eight hundred forty-seven".