4257843888644 has 12 divisors (see below), whose sum is σ = 7482403488000. Its totient is φ = 2120014320648.

The previous prime is 4257843888619. The next prime is 4257843888679. The reversal of 4257843888644 is 4468883487524.

4257843888644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2226904844 + ... + 2226906755.

It is an arithmetic number, because the mean of its divisors is an integer number (623533624000).

Almost surely, 2^{4257843888644} is an apocalyptic number.

It is an amenable number.

4257843888644 is a deficient number, since it is larger than the sum of its proper divisors (3224559599356).

4257843888644 is a wasteful number, since it uses less digits than its factorization.

4257843888644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453811842 (or 4453811840 counting only the distinct ones).

The product of its digits is 1321205760, while the sum is 71.

The spelling of 4257843888644 in words is "four trillion, two hundred fifty-seven billion, eight hundred forty-three million, eight hundred eighty-eight thousand, six hundred forty-four".