43643142109 has 8 divisors (see below), whose sum is σ = 49880273408. Its totient is φ = 37406610000.

The previous prime is 43643142089. The next prime is 43643142143. The reversal of 43643142109 is 90124134634.

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 43643142109 - 2³¹ = 41495658461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43643142409) 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, 18964 + ... + 296050.

It is an arithmetic number, because the mean of its divisors is an integer number (6235034176).

Almost surely, 2^43643142109 is an apocalyptic number.

It is an amenable number.

43643142109 is a deficient number, since it is larger than the sum of its proper divisors (6237131299).

43643142109 is a wasteful number, since it uses less digits than its factorization.

43643142109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299595.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 43643142109 in words is "forty-three billion, six hundred forty-three million, one hundred forty-two thousand, one hundred nine".