18443600841 has 8 divisors (see below), whose sum is σ = 24600147264. Its totient is φ = 12291394160.

The previous prime is 18443600839. The next prime is 18443600881. The reversal of 18443600841 is 14800634481.

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 18443600841 - 2¹ = 18443600839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18443600841.

It is not an unprimeable number, because it can be changed into a prime (18443600831) 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, 1075005 + ... + 1092026.

It is an arithmetic number, because the mean of its divisors is an integer number (3075018408).

Almost surely, 2^18443600841 is an apocalyptic number.

It is an amenable number.

18443600841 is a deficient number, since it is larger than the sum of its proper divisors (6156546423).

18443600841 is a wasteful number, since it uses less digits than its factorization.

18443600841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169871.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 18443600841 in words is "eighteen billion, four hundred forty-three million, six hundred thousand, eight hundred forty-one".