128568385176 has 64 divisors (see below), whose sum is σ = 400732634880. Its totient is φ = 33394385280.

The previous prime is 128568385171. The next prime is 128568385189. The reversal of 128568385176 is 671583865821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128568385171) by changing a digit.

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, 34783971 + ... + 34787666.

It is an arithmetic number, because the mean of its divisors is an integer number (6261447420).

Almost surely, 2^128568385176 is an apocalyptic number.

It is an amenable number.

128568385176 is an abundant number, since it is smaller than the sum of its proper divisors (272164249704).

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

128568385176 is a wasteful number, since it uses less digits than its factorization.

128568385176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69571664 (or 69571660 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 60.

The spelling of 128568385176 in words is "one hundred twenty-eight billion, five hundred sixty-eight million, three hundred eighty-five thousand, one hundred seventy-six".