43641742117 has 8 divisors (see below), whose sum is σ = 46728106200. Its totient is φ = 40613067264.

The previous prime is 43641742093. The next prime is 43641742121. The reversal of 43641742117 is 71124714634.

It can be written as a sum of positive squares in 4 ways, for example, as 8406322596 + 35235419521 = 91686^2 + 187711^2 .

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 43641742117 - 2²³ = 43633353509 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 43641742117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43641740117) 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, 14420742 + ... + 14423767.

It is an arithmetic number, because the mean of its divisors is an integer number (5841013275).

Almost surely, 2^43641742117 is an apocalyptic number.

It is an amenable number.

43641742117 is a deficient number, since it is larger than the sum of its proper divisors (3086364083).

43641742117 is a wasteful number, since it uses less digits than its factorization.

43641742117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28844615.

The product of its digits is 112896, while the sum is 40.

The spelling of 43641742117 in words is "forty-three billion, six hundred forty-one million, seven hundred forty-two thousand, one hundred seventeen".