3818666839679 has 8 divisors (see below), whose sum is σ = 3900130615920. Its totient is φ = 3738047247936.

The previous prime is 3818666839651. The next prime is 3818666839733. The reversal of 3818666839679 is 9769386668183.

It is a happy number.

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 3818666839679 - 2²⁰ = 3818665791103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818666830679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211036982 + ... + 211055075.

It is an arithmetic number, because the mean of its divisors is an integer number (487516326990).

Almost surely, 2^{3818666839679} is an apocalyptic number.

3818666839679 is a deficient number, since it is larger than the sum of its proper divisors (81463776241).

3818666839679 is a wasteful number, since it uses less digits than its factorization.

3818666839679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422092249.

The product of its digits is 3386105856, while the sum is 80.

The spelling of 3818666839679 in words is "three trillion, eight hundred eighteen billion, six hundred sixty-six million, eight hundred thirty-nine thousand, six hundred seventy-nine".