18450012369 has 8 divisors (see below), whose sum is σ = 24623697280. Its totient is φ = 12288167856.

The previous prime is 18450012353. The next prime is 18450012389. The reversal of 18450012369 is 96321005481.

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

It is not a de Polignac number, because 18450012369 - 2⁴ = 18450012353 is a prime.

It is a super-2 number, since 2×18450012369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18450012319) 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, 2956462 + ... + 2962695.

It is an arithmetic number, because the mean of its divisors is an integer number (3077962160).

Almost surely, 2^18450012369 is an apocalyptic number.

It is an amenable number.

18450012369 is a deficient number, since it is larger than the sum of its proper divisors (6173684911).

18450012369 is a wasteful number, since it uses less digits than its factorization.

18450012369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920199.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 18450012369 in words is "eighteen billion, four hundred fifty million, twelve thousand, three hundred sixty-nine".