128825002084 has 9 divisors (see below), whose sum is σ = 225445009881. Its totient is φ = 64412142120.

The previous prime is 128825002063. The next prime is 128825002093. The reversal of 128825002084 is 480200528821.

The square root of 128825002084 is 358922.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 173659684 + 128651342400 = 13178^2 + 358680^2 .

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 628114 + ... + 807574.

Almost surely, 2^128825002084 is an apocalyptic number.

128825002084 is the 358922-nd square number.

It is an amenable number.

128825002084 is a deficient number, since it is larger than the sum of its proper divisors (96620007797).

128825002084 is an frugal number, since it uses more digits than its factorization.

128825002084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358926 (or 179463 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 128825002084 in words is "one hundred twenty-eight billion, eight hundred twenty-five million, two thousand, eighty-four".