2042974491449 has 2 divisors, whose sum is σ = 2042974491450. Its totient is φ = 2042974491448.

The previous prime is 2042974491407. The next prime is 2042974491451. The reversal of 2042974491449 is 9441944792402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028824199424 + 14150292025 = 1424368^2 + 118955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042974491449 - 2³⁶ = 1974255014713 is a prime.

It is a super-3 number, since 3×2042974491449³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2042974491451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2042974691449) 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, 1021487245724 + 1021487245725.

It is an arithmetic number, because the mean of its divisors is an integer number (1021487245725).

Almost surely, 2^{2042974491449} is an apocalyptic number.

It is an amenable number.

2042974491449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042974491449 is an equidigital number, since it uses as much as digits as its factorization.

2042974491449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 2042974491449 in words is "two trillion, forty-two billion, nine hundred seventy-four million, four hundred ninety-one thousand, four hundred forty-nine".