3782399665 has 8 divisors (see below), whose sum is σ = 4951505088. Its totient is φ = 2750836080.

The previous prime is 3782399659. The next prime is 3782399693. The reversal of 3782399665 is 5669932873.

3782399665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3782399665 - 2⁵ = 3782399633 is a prime.

It is a super-2 number, since 2×3782399665² = 28613094451584224450, which contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 34385397 + ... + 34385506.

It is an arithmetic number, because the mean of its divisors is an integer number (618938136).

Almost surely, 2^3782399665 is an apocalyptic number.

It is an amenable number.

3782399665 is a deficient number, since it is larger than the sum of its proper divisors (1169105423).

3782399665 is a wasteful number, since it uses less digits than its factorization.

3782399665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68770919.

The product of its digits is 14696640, while the sum is 58.

The square root of 3782399665 is about 61501.2167765809. The cubic root of 3782399665 is about 1558.0777969725.

The spelling of 3782399665 in words is "three billion, seven hundred eighty-two million, three hundred ninety-nine thousand, six hundred sixty-five".