3894644618099 has 4 divisors (see below), whose sum is σ = 3894679391736. Its totient is φ = 3894609844464.

The previous prime is 3894644618087. The next prime is 3894644618119. The reversal of 3894644618099 is 9908164464983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3894644618099 - 2⁴ = 3894644618083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3894614618099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17218274 + ... + 17442999.

It is an arithmetic number, because the mean of its divisors is an integer number (973669847934).

Almost surely, 2^{3894644618099} is an apocalyptic number.

3894644618099 is a deficient number, since it is larger than the sum of its proper divisors (34773637).

3894644618099 is a wasteful number, since it uses less digits than its factorization.

3894644618099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34773636.

The product of its (nonzero) digits is 322486272, while the sum is 71.

The spelling of 3894644618099 in words is "three trillion, eight hundred ninety-four billion, six hundred forty-four million, six hundred eighteen thousand, ninety-nine".