168468745751 has 8 divisors (see below), whose sum is σ = 170609383680. Its totient is φ = 166328311032.

The previous prime is 168468745747. The next prime is 168468745763. The reversal of 168468745751 is 157547864861.

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

It is a cyclic number.

It is not a de Polignac number, because 168468745751 - 2² = 168468745747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168468745351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309036 + ... + 2380878.

It is an arithmetic number, because the mean of its divisors is an integer number (21326172960).

Almost surely, 2^168468745751 is an apocalyptic number.

168468745751 is a deficient number, since it is larger than the sum of its proper divisors (2140637929).

168468745751 is an equidigital number, since it uses as much as digits as its factorization.

168468745751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101605.

The product of its digits is 45158400, while the sum is 62.

The spelling of 168468745751 in words is "one hundred sixty-eight billion, four hundred sixty-eight million, seven hundred forty-five thousand, seven hundred fifty-one".