4244749557887 has 2 divisors, whose sum is σ = 4244749557888. Its totient is φ = 4244749557886.

The previous prime is 4244749557833. The next prime is 4244749557889. The reversal of 4244749557887 is 7887559474424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4244749557887 - 2³⁰ = 4243675816063 is a prime.

Together with 4244749557889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4244749557889) 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, 2122374778943 + 2122374778944.

It is an arithmetic number, because the mean of its divisors is an integer number (2122374778944).

Almost surely, 2^{4244749557887} is an apocalyptic number.

4244749557887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244749557887 is an equidigital number, since it uses as much as digits as its factorization.

4244749557887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2528870400, while the sum is 74.

The spelling of 4244749557887 in words is "four trillion, two hundred forty-four billion, seven hundred forty-nine million, five hundred fifty-seven thousand, eight hundred eighty-seven".