3420421441439 has 2 divisors, whose sum is σ = 3420421441440. Its totient is φ = 3420421441438.

The previous prime is 3420421441427. The next prime is 3420421441441. The reversal of 3420421441439 is 9341441240243.

3420421441439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3420421441439 is a prime.

Together with 3420421441441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3420421441396 and 3420421441405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420421441499) 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, 1710210720719 + 1710210720720.

It is an arithmetic number, because the mean of its divisors is an integer number (1710210720720).

Almost surely, 2^{3420421441439} is an apocalyptic number.

3420421441439 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420421441439 is an equidigital number, since it uses as much as digits as its factorization.

3420421441439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 3420421441439 in words is "three trillion, four hundred twenty billion, four hundred twenty-one million, four hundred forty-one thousand, four hundred thirty-nine".