18369234223 has 8 divisors (see below), whose sum is σ = 18860942016. Its totient is φ = 17879606400.

The previous prime is 18369234209. The next prime is 18369234229. The reversal of 18369234223 is 32243296381.

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-18369234223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18369234223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18369234229) 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, 502086 + ... + 537427.

It is an arithmetic number, because the mean of its divisors is an integer number (2357617752).

Almost surely, 2^18369234223 is an apocalyptic number.

18369234223 is a deficient number, since it is larger than the sum of its proper divisors (491707793).

18369234223 is a wasteful number, since it uses less digits than its factorization.

18369234223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039985.

The product of its digits is 373248, while the sum is 43.

The spelling of 18369234223 in words is "eighteen billion, three hundred sixty-nine million, two hundred thirty-four thousand, two hundred twenty-three".