168249804189 has 8 divisors (see below), whose sum is σ = 224343158592. Its totient is φ = 112161492960.

The previous prime is 168249804187. The next prime is 168249804241. The reversal of 168249804189 is 981408942861.

168249804189 is digitally balanced in base 2, 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 not a de Polignac number, because 168249804189 - 2¹ = 168249804187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168249804187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182249 + ... + 1316894.

It is an arithmetic number, because the mean of its divisors is an integer number (28042894824).

Almost surely, 2^168249804189 is an apocalyptic number.

It is an amenable number.

168249804189 is a deficient number, since it is larger than the sum of its proper divisors (56093354403).

168249804189 is a wasteful number, since it uses less digits than its factorization.

168249804189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521587.

The product of its (nonzero) digits is 7962624, while the sum is 60.

The spelling of 168249804189 in words is "one hundred sixty-eight billion, two hundred forty-nine million, eight hundred four thousand, one hundred eighty-nine".