4021444048189 has 2 divisors, whose sum is σ = 4021444048190. Its totient is φ = 4021444048188.

The previous prime is 4021444048183. The next prime is 4021444048211. The reversal of 4021444048189 is 9818404441204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3731426256100 + 290017792089 = 1931690^2 + 538533^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021444048189 - 2¹⁹ = 4021443523901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021444048183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010722024094 + 2010722024095.

It is an arithmetic number, because the mean of its divisors is an integer number (2010722024095).

Almost surely, 2^{4021444048189} is an apocalyptic number.

It is an amenable number.

4021444048189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021444048189 is an equidigital number, since it uses as much as digits as its factorization.

4021444048189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 4021444048189 in words is "four trillion, twenty-one billion, four hundred forty-four million, forty-eight thousand, one hundred eighty-nine".