128288428806 has 16 divisors (see below), whose sum is σ = 256686580800. Its totient is φ = 42744522408.

The previous prime is 128288428799. The next prime is 128288428841. The reversal of 128288428806 is 608824882821.

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 7 ways as a sum of consecutive naturals, for example, 4556596 + ... + 4584663.

It is an arithmetic number, because the mean of its divisors is an integer number (16042911300).

Almost surely, 2^128288428806 is an apocalyptic number.

128288428806 is an abundant number, since it is smaller than the sum of its proper divisors (128398151994).

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

128288428806 is a wasteful number, since it uses less digits than its factorization.

128288428806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143603.

The product of its (nonzero) digits is 6291456, while the sum is 57.

The spelling of 128288428806 in words is "one hundred twenty-eight billion, two hundred eighty-eight million, four hundred twenty-eight thousand, eight hundred six".