128403675432 has 96 divisors (see below), whose sum is σ = 350393472000. Its totient is φ = 42478151040.

The previous prime is 128403675397. The next prime is 128403675437. The reversal of 128403675432 is 234576304821.

128403675432 is a `hidden beast` number, since 1 + 2 + 8 + 40 + 3 + 67 + 543 + 2 = 666.

128403675432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (128403675437) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6026494 + ... + 6047762.

It is an arithmetic number, because the mean of its divisors is an integer number (3649932000).

Almost surely, 2^128403675432 is an apocalyptic number.

128403675432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128403675432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175196736000).

128403675432 is an abundant number, since it is smaller than the sum of its proper divisors (221989796568).

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

128403675432 is a wasteful number, since it uses less digits than its factorization.

128403675432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911 (or 21904 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 128403675432 in words is "one hundred twenty-eight billion, four hundred three million, six hundred seventy-five thousand, four hundred thirty-two".