6244742474449 has 2 divisors, whose sum is σ = 6244742474450. Its totient is φ = 6244742474448.

The previous prime is 6244742474401. The next prime is 6244742474461. The reversal of 6244742474449 is 9444742474426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3287694240000 + 2957048234449 = 1813200^2 + 1719607^2 .

It is a cyclic number.

It is not a de Polignac number, because 6244742474449 - 2¹³ = 6244742466257 is a prime.

It is not a weakly prime, because it can be changed into another prime (6244742471449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3122371237224 + 3122371237225.

It is an arithmetic number, because the mean of its divisors is an integer number (3122371237225).

Almost surely, 2^{6244742474449} is an apocalyptic number.

It is an amenable number.

6244742474449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6244742474449 is an equidigital number, since it uses as much as digits as its factorization.

6244742474449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 173408256, while the sum is 61.

The spelling of 6244742474449 in words is "six trillion, two hundred forty-four billion, seven hundred forty-two million, four hundred seventy-four thousand, four hundred forty-nine".