328705128158 has 48 divisors (see below), whose sum is σ = 583075105776. Its totient is φ = 137351934720.

The previous prime is 328705128137. The next prime is 328705128173. The reversal of 328705128158 is 851821507823.

It is a happy number.

It is a super-3 number, since 3×328705128158³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 453860 + ... + 929192.

It is an arithmetic number, because the mean of its divisors is an integer number (12147398037).

Almost surely, 2^328705128158 is an apocalyptic number.

328705128158 is a deficient number, since it is larger than the sum of its proper divisors (254369977618).

328705128158 is a wasteful number, since it uses less digits than its factorization.

328705128158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475449 (or 475406 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 328705128158 in words is "three hundred twenty-eight billion, seven hundred five million, one hundred twenty-eight thousand, one hundred fifty-eight".