3944141668 has 12 divisors (see below), whose sum is σ = 6904075500. Its totient is φ = 1971548672.

The previous prime is 3944141647. The next prime is 3944141671. The reversal of 3944141668 is 8661414493.

It can be written as a sum of positive squares in 2 ways, for example, as 1180747044 + 2763394624 = 34362^2 + 52568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113293 + ... + 143956.

It is an arithmetic number, because the mean of its divisors is an integer number (575339625).

Almost surely, 2^3944141668 is an apocalyptic number.

It is an amenable number.

3944141668 is a deficient number, since it is larger than the sum of its proper divisors (2959933832).

3944141668 is a wasteful number, since it uses less digits than its factorization.

3944141668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261086 (or 261084 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 3944141668 is about 62802.4017693591. The cubic root of 3944141668 is about 1579.9772559884.

The spelling of 3944141668 in words is "three billion, nine hundred forty-four million, one hundred forty-one thousand, six hundred sixty-eight".