43875168661 has 8 divisors (see below), whose sum is σ = 44194124384. Its totient is φ = 43556713200.

The previous prime is 43875168629. The next prime is 43875168671. The reversal of 43875168661 is 16686157834.

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 43875168661 - 2⁵ = 43875168629 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 (43875168671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51886 + ... + 300736.

It is an arithmetic number, because the mean of its divisors is an integer number (5524265548).

Almost surely, 2^43875168661 is an apocalyptic number.

It is an amenable number.

43875168661 is a deficient number, since it is larger than the sum of its proper divisors (318955723).

43875168661 is a wasteful number, since it uses less digits than its factorization.

43875168661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250131.

The product of its digits is 5806080, while the sum is 55.

The spelling of 43875168661 in words is "forty-three billion, eight hundred seventy-five million, one hundred sixty-eight thousand, six hundred sixty-one".