18221441363 has 8 divisors (see below), whose sum is σ = 19095287328. Its totient is φ = 17354396224.

The previous prime is 18221441341. The next prime is 18221441369. The reversal of 18221441363 is 36314412281.

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 18221441363 - 2⁸ = 18221441107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18221441369) 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, 1694720 + ... + 1705437.

It is an arithmetic number, because the mean of its divisors is an integer number (2386910916).

Almost surely, 2^18221441363 is an apocalyptic number.

18221441363 is a deficient number, since it is larger than the sum of its proper divisors (873845965).

18221441363 is a wasteful number, since it uses less digits than its factorization.

18221441363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400413.

The product of its digits is 27648, while the sum is 35.

The spelling of 18221441363 in words is "eighteen billion, two hundred twenty-one million, four hundred forty-one thousand, three hundred sixty-three".