168285785482238 has 4 divisors (see below), whose sum is σ = 252428678223360. Its totient is φ = 84142892741118.

The previous prime is 168285785482231. The next prime is 168285785482247. The reversal of 168285785482238 is 832284587582861.

168285785482238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168285785482231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42071446370558 + ... + 42071446370561.

It is an arithmetic number, because the mean of its divisors is an integer number (63107169555840).

Almost surely, 2^{168285785482238} is an apocalyptic number.

168285785482238 is a deficient number, since it is larger than the sum of its proper divisors (84142892741122).

168285785482238 is an equidigital number, since it uses as much as digits as its factorization.

168285785482238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84142892741121.

The product of its digits is 3303014400, while the sum is 77.

The spelling of 168285785482238 in words is "one hundred sixty-eight trillion, two hundred eighty-five billion, seven hundred eighty-five million, four hundred eighty-two thousand, two hundred thirty-eight".