128247882728 has 64 divisors (see below), whose sum is σ = 275657765760. Its totient is φ = 54795476736.

The previous prime is 128247882671. The next prime is 128247882767. The reversal of 128247882728 is 827288742821.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31028150 + ... + 31032282.

It is an arithmetic number, because the mean of its divisors is an integer number (4307152590).

Almost surely, 2^128247882728 is an apocalyptic number.

It is an amenable number.

128247882728 is an abundant number, since it is smaller than the sum of its proper divisors (147409883032).

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

128247882728 is a wasteful number, since it uses less digits than its factorization.

128247882728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706 (or 5702 counting only the distinct ones).

The product of its digits is 12845056, while the sum is 59.

The spelling of 128247882728 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, seven hundred twenty-eight".