4128043689 has 32 divisors (see below), whose sum is σ = 7624673280. Its totient is φ = 2144437200.

The previous prime is 4128043681. The next prime is 4128043693. The reversal of 4128043689 is 9863408214.

It is a happy number.

4128043689 is a `hidden beast` number, since 4 + 1 + 280 + 4 + 368 + 9 = 666.

It is not a de Polignac number, because 4128043689 - 2³ = 4128043681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4128043681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990717 + ... + 994874.

It is an arithmetic number, because the mean of its divisors is an integer number (238271040).

Almost surely, 2^4128043689 is an apocalyptic number.

It is an amenable number.

4128043689 is a deficient number, since it is larger than the sum of its proper divisors (3496629591).

4128043689 is a wasteful number, since it uses less digits than its factorization.

4128043689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985618 (or 1985612 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 4128043689 is about 64249.8536107282. The cubic root of 4128043689 is about 1604.1615220383.

The spelling of 4128043689 in words is "four billion, one hundred twenty-eight million, forty-three thousand, six hundred eighty-nine".