128443284338 has 16 divisors (see below), whose sum is σ = 204008022360. Its totient is φ = 60440975616.

The previous prime is 128443284331. The next prime is 128443284371. The reversal of 128443284338 is 833482344821.

128443284338 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 85026477649 + 43416806689 = 291593^2 + 208367^2 .

It is not an unprimeable number, because it can be changed into a prime (128443284331) 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, 728828 + ... + 887736.

Almost surely, 2^128443284338 is an apocalyptic number.

128443284338 is a deficient number, since it is larger than the sum of its proper divisors (75564738022).

128443284338 is a wasteful number, since it uses less digits than its factorization.

128443284338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182701.

The product of its digits is 3538944, while the sum is 50.

The spelling of 128443284338 in words is "one hundred twenty-eight billion, four hundred forty-three million, two hundred eighty-four thousand, three hundred thirty-eight".