42843717889 has 32 divisors (see below), whose sum is σ = 52394065920. Its totient is φ = 34233936000.

The previous prime is 42843717871. The next prime is 42843717901. The reversal of 42843717889 is 98871734824.

It is not a de Polignac number, because 42843717889 - 2⁹ = 42843717377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42843717089) 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 31 ways as a sum of consecutive naturals, for example, 7594932 + ... + 7600570.

It is an arithmetic number, because the mean of its divisors is an integer number (1637314560).

Almost surely, 2^42843717889 is an apocalyptic number.

It is an amenable number.

42843717889 is a deficient number, since it is larger than the sum of its proper divisors (9550348031).

42843717889 is a wasteful number, since it uses less digits than its factorization.

42843717889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861.

The product of its digits is 21676032, while the sum is 61.

The spelling of 42843717889 in words is "forty-two billion, eight hundred forty-three million, seven hundred seventeen thousand, eight hundred eighty-nine".