2043442421149 has 2 divisors, whose sum is σ = 2043442421150. Its totient is φ = 2043442421148.

The previous prime is 2043442421143. The next prime is 2043442421227. The reversal of 2043442421149 is 9411242443402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1715623193124 + 327819228025 = 1309818^2 + 572555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043442421149 - 2¹⁷ = 2043442290077 is a prime.

It is a super-4 number, since 4×2043442421149⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043442421143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021721210574 + 1021721210575.

It is an arithmetic number, because the mean of its divisors is an integer number (1021721210575).

Almost surely, 2^{2043442421149} is an apocalyptic number.

It is an amenable number.

2043442421149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043442421149 is an equidigital number, since it uses as much as digits as its factorization.

2043442421149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 2043442421149 in words is "two trillion, forty-three billion, four hundred forty-two million, four hundred twenty-one thousand, one hundred forty-nine".