168417853874 has 8 divisors (see below), whose sum is σ = 253064610588. Its totient is φ = 84062983680.

The previous prime is 168417853873. The next prime is 168417853909. The reversal of 168417853874 is 478358714861.

168417853874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 155894677225 + 12523176649 = 394835^2 + 111907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (168417853873) 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 3 ways as a sum of consecutive naturals, for example, 72970187 + ... + 72972494.

Almost surely, 2^168417853874 is an apocalyptic number.

168417853874 is a deficient number, since it is larger than the sum of its proper divisors (84646756714).

168417853874 is a wasteful number, since it uses less digits than its factorization.

168417853874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145943260.

The product of its digits is 36126720, while the sum is 62.

The spelling of 168417853874 in words is "one hundred sixty-eight billion, four hundred seventeen million, eight hundred fifty-three thousand, eight hundred seventy-four".