4144439871 has 32 divisors (see below), whose sum is σ = 7213328640. Its totient is φ = 2318565600.

The previous prime is 4144439863. The next prime is 4144439891. The reversal of 4144439871 is 1789344414.

4144439871 is a `hidden beast` number, since 4 + 144 + 439 + 8 + 71 = 666.

It is not a de Polignac number, because 4144439871 - 2³ = 4144439863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144439801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532845 + ... + 540566.

It is an arithmetic number, because the mean of its divisors is an integer number (225416520).

Almost surely, 2^4144439871 is an apocalyptic number.

4144439871 is a deficient number, since it is larger than the sum of its proper divisors (3068888769).

4144439871 is a wasteful number, since it uses less digits than its factorization.

4144439871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073444 (or 1073438 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 4144439871 is about 64377.3241988202. The cubic root of 4144439871 is about 1606.2825733759.

The spelling of 4144439871 in words is "four billion, one hundred forty-four million, four hundred thirty-nine thousand, eight hundred seventy-one".