128564602634068 has 96 divisors (see below), whose sum is σ = 249943034880000. Its totient is φ = 57587542467840.

The previous prime is 128564602634057. The next prime is 128564602634093. The reversal of 128564602634068 is 860436206465821.

It is a junction number, because it is equal to n+sod(n) for n = 128564602633997 and 128564602634015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1026557013 + ... + 1026682243.

It is an arithmetic number, because the mean of its divisors is an integer number (2603573280000).

Almost surely, 2^{128564602634068} is an apocalyptic number.

It is an amenable number.

128564602634068 is a deficient number, since it is larger than the sum of its proper divisors (121378432245932).

128564602634068 is a wasteful number, since it uses less digits than its factorization.

128564602634068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131965 (or 131963 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 61.

The spelling of 128564602634068 in words is "one hundred twenty-eight trillion, five hundred sixty-four billion, six hundred two million, six hundred thirty-four thousand, sixty-eight".