18424223869 has 8 divisors (see below), whose sum is σ = 18464993568. Its totient is φ = 18383501040.

The previous prime is 18424223821. The next prime is 18424223897. The reversal of 18424223869 is 96832242481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18424223869 is a prime.

It is a super-2 number, since 2×18424223869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18424223969) 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, 842694 + ... + 864280.

It is an arithmetic number, because the mean of its divisors is an integer number (2308124196).

Almost surely, 2^18424223869 is an apocalyptic number.

It is an amenable number.

18424223869 is a deficient number, since it is larger than the sum of its proper divisors (40769699).

18424223869 is an equidigital number, since it uses as much as digits as its factorization.

18424223869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23435.

The product of its digits is 1327104, while the sum is 49.

The spelling of 18424223869 in words is "eighteen billion, four hundred twenty-four million, two hundred twenty-three thousand, eight hundred sixty-nine".