4138725689 has 16 divisors (see below), whose sum is σ = 4860729216. Its totient is φ = 3449961600.

The previous prime is 4138725677. The next prime is 4138725719. The reversal of 4138725689 is 9865278314.

It is a cyclic number.

It is not a de Polignac number, because 4138725689 - 2²⁰ = 4137677113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4138725689.

It is not an unprimeable number, because it can be changed into a prime (4138725659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68234 + ... + 113724.

It is an arithmetic number, because the mean of its divisors is an integer number (303795576).

Almost surely, 2^4138725689 is an apocalyptic number.

It is an amenable number.

4138725689 is a deficient number, since it is larger than the sum of its proper divisors (722003527).

4138725689 is a wasteful number, since it uses less digits than its factorization.

4138725689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45856.

The product of its digits is 2903040, while the sum is 53.

The square root of 4138725689 is about 64332.9284969991. The cubic root of 4138725689 is about 1605.5440085484.

It can be divided in two parts, 41387 and 25689, that added together give a palindrome (67076).

The spelling of 4138725689 in words is "four billion, one hundred thirty-eight million, seven hundred twenty-five thousand, six hundred eighty-nine".