128005747880404 has 12 divisors (see below), whose sum is σ = 233749626564384. Its totient is φ = 61220140290584.

The previous prime is 128005747880401. The next prime is 128005747880419. The reversal of 128005747880404 is 404088747500821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128005747880401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695683412302 + ... + 695683412485.

It is an arithmetic number, because the mean of its divisors is an integer number (19479135547032).

Almost surely, 2^{128005747880404} is an apocalyptic number.

It is an amenable number.

128005747880404 is a deficient number, since it is larger than the sum of its proper divisors (105743878683980).

128005747880404 is a wasteful number, since it uses less digits than its factorization.

128005747880404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391366824814 (or 1391366824812 counting only the distinct ones).

The product of its (nonzero) digits is 16056320, while the sum is 58.

The spelling of 128005747880404 in words is "one hundred twenty-eight trillion, five billion, seven hundred forty-seven million, eight hundred eighty thousand, four hundred four".