2044040042189 has 2 divisors, whose sum is σ = 2044040042190. Its totient is φ = 2044040042188.

The previous prime is 2044040042173. The next prime is 2044040042237. The reversal of 2044040042189 is 9812400404402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1615364740900 + 428675301289 = 1270970^2 + 654733^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044040042189 - 2⁴ = 2044040042173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044040041189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022020021094 + 1022020021095.

It is an arithmetic number, because the mean of its divisors is an integer number (1022020021095).

Almost surely, 2^{2044040042189} is an apocalyptic number.

It is an amenable number.

2044040042189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044040042189 is an equidigital number, since it uses as much as digits as its factorization.

2044040042189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 2044040042189 in words is "two trillion, forty-four billion, forty million, forty-two thousand, one hundred eighty-nine".