18789239482893 has 72 divisors (see below), whose sum is σ = 30491542972800. Its totient is φ = 11138190560640.

The previous prime is 18789239482859. The next prime is 18789239482907. The reversal of 18789239482893 is 39828493298781.

18789239482893 is a `hidden beast` number, since 1 + 8 + 78 + 9 + 2 + 394 + 82 + 89 + 3 = 666.

It is not a de Polignac number, because 18789239482893 - 2²¹ = 18789237385741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18789239482393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8184753 + ... + 10225881.

It is an arithmetic number, because the mean of its divisors is an integer number (423493652400).

Almost surely, 2^{18789239482893} is an apocalyptic number.

It is an amenable number.

18789239482893 is a deficient number, since it is larger than the sum of its proper divisors (11702303489907).

18789239482893 is a wasteful number, since it uses less digits than its factorization.

18789239482893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041343 (or 2041329 counting only the distinct ones).

The product of its digits is 3009871872, while the sum is 81.

The spelling of 18789239482893 in words is "eighteen trillion, seven hundred eighty-nine billion, two hundred thirty-nine million, four hundred eighty-two thousand, eight hundred ninety-three".