3768219665 has 16 divisors (see below), whose sum is σ = 5168845440. Its totient is φ = 2583421440.

The previous prime is 3768219641. The next prime is 3768219691. The reversal of 3768219665 is 5669128673.

It is not a de Polignac number, because 3768219665 - 2¹⁴ = 3768203281 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 322241 + ... + 333729.

It is an arithmetic number, because the mean of its divisors is an integer number (323052840).

Almost surely, 2^3768219665 is an apocalyptic number.

3768219665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3768219665 is a deficient number, since it is larger than the sum of its proper divisors (1400625775).

3768219665 is a wasteful number, since it uses less digits than its factorization.

3768219665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20872.

The product of its digits is 3265920, while the sum is 53.

The square root of 3768219665 is about 61385.8262549263. The cubic root of 3768219665 is about 1556.1283105872.

The spelling of 3768219665 in words is "three billion, seven hundred sixty-eight million, two hundred nineteen thousand, six hundred sixty-five".