168249804187 has 2 divisors, whose sum is σ = 168249804188. Its totient is φ = 168249804186.

The previous prime is 168249804167. The next prime is 168249804241. The reversal of 168249804187 is 781408942861.

168249804187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168249804187 - 2³¹ = 166102320539 is a prime.

It is not a weakly prime, because it can be changed into another prime (168249804127) 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 as a sum of consecutive naturals, namely, 84124902093 + 84124902094.

It is an arithmetic number, because the mean of its divisors is an integer number (84124902094).

Almost surely, 2^168249804187 is an apocalyptic number.

168249804187 is a deficient number, since it is larger than the sum of its proper divisors (1).

168249804187 is an equidigital number, since it uses as much as digits as its factorization.

168249804187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 168249804187 in words is "one hundred sixty-eight billion, two hundred forty-nine million, eight hundred four thousand, one hundred eighty-seven".