128278008404384 has 24 divisors (see below), whose sum is σ = 252549024704928. Its totient is φ = 64138573558720.

The previous prime is 128278008404383. The next prime is 128278008404387. The reversal of 128278008404384 is 483404800872821.

It is not an unprimeable number, because it can be changed into a prime (128278008404383) 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, 8590052 + ... + 18175395.

It is an arithmetic number, because the mean of its divisors is an integer number (10522876029372).

Almost surely, 2^{128278008404384} is an apocalyptic number.

It is an amenable number.

128278008404384 is a deficient number, since it is larger than the sum of its proper divisors (124271016300544).

128278008404384 is a wasteful number, since it uses less digits than its factorization.

128278008404384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26915228 (or 26915220 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 59.

The spelling of 128278008404384 in words is "one hundred twenty-eight trillion, two hundred seventy-eight billion, eight million, four hundred four thousand, three hundred eighty-four".