18265338480068 has 12 divisors (see below), whose sum is σ = 31988987177532. Its totient is φ = 9125627857920.

The previous prime is 18265338480043. The next prime is 18265338480073. The reversal of 18265338480068 is 86008483356281.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15417857727364 + 2847480752704 = 3926558^2 + 1687448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760339693 + ... + 1760350068.

It is an arithmetic number, because the mean of its divisors is an integer number (2665748931461).

Almost surely, 2^{18265338480068} is an apocalyptic number.

It is an amenable number.

18265338480068 is a deficient number, since it is larger than the sum of its proper divisors (13723648697464).

18265338480068 is a wasteful number, since it uses less digits than its factorization.

18265338480068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520691062 (or 3520691060 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 62.

The spelling of 18265338480068 in words is "eighteen trillion, two hundred sixty-five billion, three hundred thirty-eight million, four hundred eighty thousand, sixty-eight".