3849443665 has 16 divisors (see below), whose sum is σ = 4741920000. Its totient is φ = 2998899072.

The previous prime is 3849443659. The next prime is 3849443677. The reversal of 3849443665 is 5663449483.

It is a cyclic number.

It is not a de Polignac number, because 3849443665 - 2⁷ = 3849443537 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 37915 + ... + 95584.

It is an arithmetic number, because the mean of its divisors is an integer number (296370000).

Almost surely, 2^3849443665 is an apocalyptic number.

It is an amenable number.

3849443665 is a deficient number, since it is larger than the sum of its proper divisors (892476335).

3849443665 is a wasteful number, since it uses less digits than its factorization.

3849443665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133656.

The product of its digits is 7464960, while the sum is 52.

The square root of 3849443665 is about 62043.8849928017. The cubic root of 3849443665 is about 1567.2297103796.

The spelling of 3849443665 in words is "three billion, eight hundred forty-nine million, four hundred forty-three thousand, six hundred sixty-five".