243106843889 has 24 divisors (see below), whose sum is σ = 304600379328. Its totient is φ = 192317358240.

The previous prime is 243106843883. The next prime is 243106843933. The reversal of 243106843889 is 988348601342.

It is not a de Polignac number, because 243106843889 - 2²⁰ = 243105795313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243106843883) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4449044 + ... + 4503354.

It is an arithmetic number, because the mean of its divisors is an integer number (12691682472).

Almost surely, 2^243106843889 is an apocalyptic number.

It is an amenable number.

243106843889 is a deficient number, since it is larger than the sum of its proper divisors (61493535439).

243106843889 is a wasteful number, since it uses less digits than its factorization.

243106843889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61365 (or 61358 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 243106843889 in words is "two hundred forty-three billion, one hundred six million, eight hundred forty-three thousand, eight hundred eighty-nine".