3841143885 has 12 divisors (see below), whose sum is σ = 6657982812. Its totient is φ = 2048610048.

The previous prime is 3841143883. The next prime is 3841143997. The reversal of 3841143885 is 5883411483.

It can be written as a sum of positive squares in 2 ways, for example, as 1178274276 + 2662869609 = 34326^2 + 51603^2 .

It is not a de Polignac number, because 3841143885 - 2¹ = 3841143883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 85358753 = 3841143885 / (3 + 8 + 4 + 1 + 1 + 4 + 3 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3841143885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3841143883) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 42679332 + ... + 42679421.

It is an arithmetic number, because the mean of its divisors is an integer number (554831901).

Almost surely, 2^3841143885 is an apocalyptic number.

It is an amenable number.

3841143885 is a deficient number, since it is larger than the sum of its proper divisors (2816838927).

3841143885 is a wasteful number, since it uses less digits than its factorization.

3841143885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85358764 (or 85358761 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 3841143885 is about 61976.9625344773. The cubic root of 3841143885 is about 1566.1025326406.

The spelling of 3841143885 in words is "three billion, eight hundred forty-one million, one hundred forty-three thousand, eight hundred eighty-five".