168843782316 has 48 divisors (see below), whose sum is σ = 441399974400. Its totient is φ = 49781949120.

The previous prime is 168843782309. The next prime is 168843782323. The reversal of 168843782316 is 613287348861.

It is an interprime number because it is at equal distance from previous prime (168843782309) and next prime (168843782323).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17280516 + ... + 17290283.

It is an arithmetic number, because the mean of its divisors is an integer number (9195832800).

Almost surely, 2^168843782316 is an apocalyptic number.

It is an amenable number.

168843782316 is an abundant number, since it is smaller than the sum of its proper divisors (272556192084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168843782316 is a wasteful number, since it uses less digits than its factorization.

168843782316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34570854 (or 34570852 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

It can be divided in two parts, 168843 and 782316, that added together give a palindrome (951159).

The spelling of 168843782316 in words is "one hundred sixty-eight billion, eight hundred forty-three million, seven hundred eighty-two thousand, three hundred sixteen".