18627844872682 has 32 divisors (see below), whose sum is σ = 29861250858000. Its totient is φ = 8684384206848.

The previous prime is 18627844872677. The next prime is 18627844872683. The reversal of 18627844872682 is 28627844872681.

It can be written as a sum of positive squares in 8 ways, for example, as 2334359235321 + 16293485637361 = 1527861^2 + 4036519^2 .

It is not an unprimeable number, because it can be changed into a prime (18627844872683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7040944 + ... + 9318292.

Almost surely, 2^{18627844872682} is an apocalyptic number.

18627844872682 is a deficient number, since it is larger than the sum of its proper divisors (11233405985318).

18627844872682 is a wasteful number, since it uses less digits than its factorization.

18627844872682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279610.

The product of its digits is 924844032, while the sum is 73.

Subtracting 18627844872682 from its reverse (28627844872681), we obtain a palindrome (9999999999999).

The spelling of 18627844872682 in words is "eighteen trillion, six hundred twenty-seven billion, eight hundred forty-four million, eight hundred seventy-two thousand, six hundred eighty-two".