43231689938 has 16 divisors (see below), whose sum is σ = 68514336000. Its totient is φ = 20402037072.

The previous prime is 43231689931. The next prime is 43231689967. The reversal of 43231689938 is 83998613234.

It is not an unprimeable number, because it can be changed into a prime (43231689931) 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 7 ways as a sum of consecutive naturals, for example, 2104418 + ... + 2124861.

It is an arithmetic number, because the mean of its divisors is an integer number (4282146000).

Almost surely, 2^43231689938 is an apocalyptic number.

43231689938 is a deficient number, since it is larger than the sum of its proper divisors (25282646062).

43231689938 is a wasteful number, since it uses less digits than its factorization.

43231689938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229569.

The product of its digits is 6718464, while the sum is 56.

The spelling of 43231689938 in words is "forty-three billion, two hundred thirty-one million, six hundred eighty-nine thousand, nine hundred thirty-eight".