43440045140423 has 4 divisors (see below), whose sum is σ = 45328742755248. Its totient is φ = 41551347525600.

The previous prime is 43440045140357. The next prime is 43440045140441. The reversal of 43440045140423 is 32404154004434.

43440045140423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43440045140423 - 2²⁶ = 43439978031559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43440045040423) 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 3 ways as a sum of consecutive naturals, for example, 944348807378 + ... + 944348807423.

It is an arithmetic number, because the mean of its divisors is an integer number (11332185688812).

Almost surely, 2^{43440045140423} is an apocalyptic number.

43440045140423 is a deficient number, since it is larger than the sum of its proper divisors (1888697614825).

43440045140423 is a wasteful number, since it uses less digits than its factorization.

43440045140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888697614824.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 43440045140423 its reverse (32404154004434), we get a palindrome (75844199144857).

The spelling of 43440045140423 in words is "forty-three trillion, four hundred forty billion, forty-five million, one hundred forty thousand, four hundred twenty-three".