4438771666 has 32 divisors (see below), whose sum is σ = 7686144000. Its totient is φ = 1883192976.

The previous prime is 4438771607. The next prime is 4438771669. The reversal of 4438771666 is 6661778344.

It is not an unprimeable number, because it can be changed into a prime (4438771669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884721 + ... + 889723.

It is an arithmetic number, because the mean of its divisors is an integer number (240192000).

Almost surely, 2^4438771666 is an apocalyptic number.

4438771666 is a deficient number, since it is larger than the sum of its proper divisors (3247372334).

4438771666 is a wasteful number, since it uses less digits than its factorization.

4438771666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638.

The product of its digits is 4064256, while the sum is 52.

The square root of 4438771666 is about 66624.1072435496. The cubic root of 4438771666 is about 1643.4415713270.

The spelling of 4438771666 in words is "four billion, four hundred thirty-eight million, seven hundred seventy-one thousand, six hundred sixty-six".