18442593445261 has 8 divisors (see below), whose sum is σ = 18462586721600. Its totient is φ = 18422609127552.

The previous prime is 18442593445253. The next prime is 18442593445267. The reversal of 18442593445261 is 16254439524481.

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 18442593445261 - 2³ = 18442593445253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18442593445196 and 18442593445205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18442593445267) 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 7 ways as a sum of consecutive naturals, for example, 1883965 + ... + 6358813.

It is an arithmetic number, because the mean of its divisors is an integer number (2307823340200).

Almost surely, 2^{18442593445261} is an apocalyptic number.

It is an amenable number.

18442593445261 is a deficient number, since it is larger than the sum of its proper divisors (19993276339).

18442593445261 is a wasteful number, since it uses less digits than its factorization.

18442593445261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479315.

The product of its digits is 33177600, while the sum is 58.

The spelling of 18442593445261 in words is "eighteen trillion, four hundred forty-two billion, five hundred ninety-three million, four hundred forty-five thousand, two hundred sixty-one".