4042251144889 has 2 divisors, whose sum is σ = 4042251144890. Its totient is φ = 4042251144888.

The previous prime is 4042251144787. The next prime is 4042251145021. The reversal of 4042251144889 is 9884411522404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2785143765625 + 1257107379264 = 1668875^2 + 1121208^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042251144889 - 2¹¹ = 4042251142841 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042251142889) 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, 2021125572444 + 2021125572445.

It is an arithmetic number, because the mean of its divisors is an integer number (2021125572445).

Almost surely, 2^{4042251144889} is an apocalyptic number.

It is an amenable number.

4042251144889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042251144889 is an equidigital number, since it uses as much as digits as its factorization.

4042251144889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 4042251144889 in words is "four trillion, forty-two billion, two hundred fifty-one million, one hundred forty-four thousand, eight hundred eighty-nine".