18443423818706 has 16 divisors (see below), whose sum is σ = 29249482721760. Its totient is φ = 8697872485440.

The previous prime is 18443423818661. The next prime is 18443423818709. The reversal of 18443423818706 is 60781832434481.

It is not an unprimeable number, because it can be changed into a prime (18443423818709) 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, 1069051415 + ... + 1069068666.

It is an arithmetic number, because the mean of its divisors is an integer number (1828092670110).

Almost surely, 2^{18443423818706} is an apocalyptic number.

18443423818706 is a deficient number, since it is larger than the sum of its proper divisors (10806058903054).

18443423818706 is a wasteful number, since it uses less digits than its factorization.

18443423818706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138120329.

The product of its (nonzero) digits is 24772608, while the sum is 59.

The spelling of 18443423818706 in words is "eighteen trillion, four hundred forty-three billion, four hundred twenty-three million, eight hundred eighteen thousand, seven hundred six".