43752070138 has 16 divisors (see below), whose sum is σ = 75006233280. Its totient is φ = 18750216096.

The previous prime is 43752070133. The next prime is 43752070177. The reversal of 43752070138 is 83107025734.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43752070138.

It is not an unprimeable number, because it can be changed into a prime (43752070133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731758 + ... + 789286.

It is an arithmetic number, because the mean of its divisors is an integer number (4687889580).

Almost surely, 2^43752070138 is an apocalyptic number.

43752070138 is a deficient number, since it is larger than the sum of its proper divisors (31254163142).

43752070138 is a wasteful number, since it uses less digits than its factorization.

43752070138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111861.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 43752070138 in words is "forty-three billion, seven hundred fifty-two million, seventy thousand, one hundred thirty-eight".