128408044804 has 18 divisors (see below), whose sum is σ = 243329447130. Its totient is φ = 59265251136.

The previous prime is 128408044759. The next prime is 128408044823. The reversal of 128408044804 is 408440804821.

It can be written as a sum of positive squares in 3 ways, for example, as 495952900 + 127912091904 = 22270^2 + 357648^2 .

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 5 ways as a sum of consecutive naturals, for example, 94975689 + ... + 94977040.

Almost surely, 2^128408044804 is an apocalyptic number.

It is an amenable number.

128408044804 is a deficient number, since it is larger than the sum of its proper divisors (114921402326).

128408044804 is a wasteful number, since it uses less digits than its factorization.

128408044804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189952759 (or 189952744 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 43.

The spelling of 128408044804 in words is "one hundred twenty-eight billion, four hundred eight million, forty-four thousand, eight hundred four".