18448735065 has 16 divisors (see below), whose sum is σ = 29822287488. Its totient is φ = 9737888256.

The previous prime is 18448735049. The next prime is 18448735079. The reversal of 18448735065 is 56053784481.

It is not a de Polignac number, because 18448735065 - 2⁴ = 18448735049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18448734999 and 18448735017.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6338317 + ... + 6341226.

It is an arithmetic number, because the mean of its divisors is an integer number (1863892968).

Almost surely, 2^18448735065 is an apocalyptic number.

18448735065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18448735065 is a deficient number, since it is larger than the sum of its proper divisors (11373552423).

18448735065 is a wasteful number, since it uses less digits than its factorization.

18448735065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679648.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 18448735065 in words is "eighteen billion, four hundred forty-eight million, seven hundred thirty-five thousand, sixty-five".