18263365448 has 16 divisors (see below), whose sum is σ = 34754912880. Its totient is φ = 8995388688.

The previous prime is 18263365397. The next prime is 18263365493. The reversal of 18263365448 is 84456336281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18263365396 and 18263365405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17036186 + ... + 17037257.

It is an arithmetic number, because the mean of its divisors is an integer number (2172182055).

Almost surely, 2^18263365448 is an apocalyptic number.

It is an amenable number.

18263365448 is a deficient number, since it is larger than the sum of its proper divisors (16491547432).

18263365448 is a wasteful number, since it uses less digits than its factorization.

18263365448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34073516 (or 34073512 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The spelling of 18263365448 in words is "eighteen billion, two hundred sixty-three million, three hundred sixty-five thousand, four hundred forty-eight".