43091368109 has 8 divisors (see below), whose sum is σ = 43542935040. Its totient is φ = 42640290000.

The previous prime is 43091368081. The next prime is 43091368129. The reversal of 43091368109 is 90186319034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43091368109 - 2²⁰ = 43090319533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43091368109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43091368129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56384 + ... + 298934.

It is an arithmetic number, because the mean of its divisors is an integer number (5442866880).

Almost surely, 2^43091368109 is an apocalyptic number.

It is an amenable number.

43091368109 is a deficient number, since it is larger than the sum of its proper divisors (451566931).

43091368109 is a wasteful number, since it uses less digits than its factorization.

43091368109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244411.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 43091368109 in words is "forty-three billion, ninety-one million, three hundred sixty-eight thousand, one hundred nine".