168718046319 has 12 divisors (see below), whose sum is σ = 243971368992. Its totient is φ = 112355224800.

The previous prime is 168718046311. The next prime is 168718046323. The reversal of 168718046319 is 913640817861.

168718046319 is a `hidden beast` number, since 16 + 87 + 1 + 80 + 463 + 19 = 666.

It is not a de Polignac number, because 168718046319 - 2³ = 168718046311 is a prime.

It is a super-2 number, since 2×168718046319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168718046311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10280742 + ... + 10297139.

It is an arithmetic number, because the mean of its divisors is an integer number (20330947416).

Almost surely, 2^168718046319 is an apocalyptic number.

168718046319 is a deficient number, since it is larger than the sum of its proper divisors (75253322673).

168718046319 is a wasteful number, since it uses less digits than its factorization.

168718046319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578798 (or 20578795 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 168718046319 in words is "one hundred sixty-eight billion, seven hundred eighteen million, forty-six thousand, three hundred nineteen".