168836441885893 has 8 divisors (see below), whose sum is σ = 169377143241600. Its totient is φ = 168296178881760.

The previous prime is 168836441885879. The next prime is 168836441885911. The reversal of 168836441885893 is 398588144638861.

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 168836441885893 - 2⁹ = 168836441885381 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 (168836441805893) 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, 108816328 + ... + 110356993.

It is an arithmetic number, because the mean of its divisors is an integer number (21172142905200).

Almost surely, 2^{168836441885893} is an apocalyptic number.

It is an amenable number.

168836441885893 is a deficient number, since it is larger than the sum of its proper divisors (540701355707).

168836441885893 is a wasteful number, since it uses less digits than its factorization.

168836441885893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219175787.

The product of its digits is 7644119040, while the sum is 82.

The spelling of 168836441885893 in words is "one hundred sixty-eight trillion, eight hundred thirty-six billion, four hundred forty-one million, eight hundred eighty-five thousand, eight hundred ninety-three".