43542238667189 has 4 divisors (see below), whose sum is σ = 43802970635424. Its totient is φ = 43281506698956.

The previous prime is 43542238667173. The next prime is 43542238667261. The reversal of 43542238667189 is 98176683224534.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43542238667189 - 2⁴ = 43542238667173 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 (43542238667159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130365983867 + ... + 130365984200.

It is an arithmetic number, because the mean of its divisors is an integer number (10950742658856).

Almost surely, 2^{43542238667189} is an apocalyptic number.

It is an amenable number.

43542238667189 is a deficient number, since it is larger than the sum of its proper divisors (260731968235).

43542238667189 is a wasteful number, since it uses less digits than its factorization.

43542238667189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260731968234.

The product of its digits is 418037760, while the sum is 68.

The spelling of 43542238667189 in words is "forty-three trillion, five hundred forty-two billion, two hundred thirty-eight million, six hundred sixty-seven thousand, one hundred eighty-nine".