128304146856 has 16 divisors (see below), whose sum is σ = 320760367200. Its totient is φ = 42768048944.

The previous prime is 128304146807. The next prime is 128304146879. The reversal of 128304146856 is 658641403821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2673003036 + ... + 2673003083.

It is an arithmetic number, because the mean of its divisors is an integer number (20047522950).

Almost surely, 2^128304146856 is an apocalyptic number.

It is an amenable number.

128304146856 is an abundant number, since it is smaller than the sum of its proper divisors (192456220344).

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

128304146856 is a wasteful number, since it uses less digits than its factorization.

128304146856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346006128 (or 5346006124 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 128304146856 in words is "one hundred twenty-eight billion, three hundred four million, one hundred forty-six thousand, eight hundred fifty-six".