3768783665 has 8 divisors (see below), whose sum is σ = 4760568960. Its totient is φ = 2856341232.

The previous prime is 3768783661. The next prime is 3768783713. The reversal of 3768783665 is 5663878673.

3768783665 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 a cyclic number.

It is not a de Polignac number, because 3768783665 - 2² = 3768783661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3768783661) 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 7 ways as a sum of consecutive naturals, for example, 19835609 + ... + 19835798.

It is an arithmetic number, because the mean of its divisors is an integer number (595071120).

Almost surely, 2^3768783665 is an apocalyptic number.

It is an amenable number.

3768783665 is a deficient number, since it is larger than the sum of its proper divisors (991785295).

3768783665 is a wasteful number, since it uses less digits than its factorization.

3768783665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39671431.

The product of its digits is 30481920, while the sum is 59.

The square root of 3768783665 is about 61390.4199773874. The cubic root of 3768783665 is about 1556.2059434096.

The spelling of 3768783665 in words is "three billion, seven hundred sixty-eight million, seven hundred eighty-three thousand, six hundred sixty-five".