128007432843 has 8 divisors (see below), whose sum is σ = 170682591888. Its totient is φ = 85335281184.

The previous prime is 128007432827. The next prime is 128007432853. The reversal of 128007432843 is 348234700821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128007432843 - 2⁴ = 128007432827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128007432795 and 128007432804.

It is not an unprimeable number, because it can be changed into a prime (128007432823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650580 + ... + 824177.

It is an arithmetic number, because the mean of its divisors is an integer number (21335323986).

Almost surely, 2^128007432843 is an apocalyptic number.

128007432843 is a deficient number, since it is larger than the sum of its proper divisors (42675159045).

128007432843 is a wasteful number, since it uses less digits than its factorization.

128007432843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503693.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 128007432843 in words is "one hundred twenty-eight billion, seven million, four hundred thirty-two thousand, eight hundred forty-three".