4218019979441 has 2 divisors, whose sum is σ = 4218019979442. Its totient is φ = 4218019979440.

The previous prime is 4218019979429. The next prime is 4218019979477. The reversal of 4218019979441 is 1449799108124.

4218019979441 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 can be written as a sum of positive squares in only one way, i.e., 3072255256225 + 1145764723216 = 1752785^2 + 1070404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4218019979441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4218019979401) 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, 2109009989720 + 2109009989721.

It is an arithmetic number, because the mean of its divisors is an integer number (2109009989721).

Almost surely, 2^{4218019979441} is an apocalyptic number.

It is an amenable number.

4218019979441 is a deficient number, since it is larger than the sum of its proper divisors (1).

4218019979441 is an equidigital number, since it uses as much as digits as its factorization.

4218019979441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 4218019979441 in words is "four trillion, two hundred eighteen billion, nineteen million, nine hundred seventy-nine thousand, four hundred forty-one".