43242809705 has 8 divisors (see below), whose sum is σ = 51968024712. Its totient is φ = 34543145728.

The previous prime is 43242809689. The next prime is 43242809723. The reversal of 43242809705 is 50790824234.

It can be written as a sum of positive squares in 4 ways, for example, as 15597761881 + 27645047824 = 124891^2 + 166268^2 .

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 43242809705 - 2⁴ = 43242809689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 6384032 + ... + 6390801.

It is an arithmetic number, because the mean of its divisors is an integer number (6496003089).

Almost surely, 2^43242809705 is an apocalyptic number.

It is an amenable number.

43242809705 is a deficient number, since it is larger than the sum of its proper divisors (8725215007).

43242809705 is a wasteful number, since it uses less digits than its factorization.

43242809705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775515.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 43242809705 in words is "forty-three billion, two hundred forty-two million, eight hundred nine thousand, seven hundred five".