18675365581252 has 6 divisors (see below), whose sum is σ = 32681889767198. Its totient is φ = 9337682790624.

The previous prime is 18675365581217. The next prime is 18675365581261. The reversal of 18675365581252 is 25218556357681.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12396201638976 + 6279163942276 = 3520824^2 + 2505826^2 .

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 as a sum of consecutive naturals, namely, 2334420697653 + ... + 2334420697660.

Almost surely, 2^{18675365581252} is an apocalyptic number.

It is an amenable number.

18675365581252 is a deficient number, since it is larger than the sum of its proper divisors (14006524185946).

18675365581252 is a wasteful number, since it uses less digits than its factorization.

18675365581252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668841395317 (or 4668841395315 counting only the distinct ones).

The product of its digits is 120960000, while the sum is 64.

The spelling of 18675365581252 in words is "eighteen trillion, six hundred seventy-five billion, three hundred sixty-five million, five hundred eighty-one thousand, two hundred fifty-two".