18786858405052 has 12 divisors (see below), whose sum is σ = 32885842515120. Its totient is φ = 9390903400736.

The previous prime is 18786858405043. The next prime is 18786858405109. The reversal of 18786858405052 is 25050485868781.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 631433713 + ... + 631463464.

It is an arithmetic number, because the mean of its divisors is an integer number (2740486876260).

Almost surely, 2^{18786858405052} is an apocalyptic number.

It is an amenable number.

18786858405052 is a deficient number, since it is larger than the sum of its proper divisors (14098984110068).

18786858405052 is a wasteful number, since it uses less digits than its factorization.

18786858405052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262900900 (or 1262900898 counting only the distinct ones).

The product of its (nonzero) digits is 172032000, while the sum is 67.

The spelling of 18786858405052 in words is "eighteen trillion, seven hundred eighty-six billion, eight hundred fifty-eight million, four hundred five thousand, fifty-two".