18873461449186 has 16 divisors (see below), whose sum is σ = 29975579638560. Its totient is φ = 8881604608320.

The previous prime is 18873461449163. The next prime is 18873461449211. The reversal of 18873461449186 is 68194416437881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20334301 + ... + 21242191.

It is an arithmetic number, because the mean of its divisors is an integer number (1873473727410).

Almost surely, 2^{18873461449186} is an apocalyptic number.

18873461449186 is a deficient number, since it is larger than the sum of its proper divisors (11102118189374).

18873461449186 is a wasteful number, since it uses less digits than its factorization.

18873461449186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519329.

The product of its digits is 222953472, while the sum is 70.

The spelling of 18873461449186 in words is "eighteen trillion, eight hundred seventy-three billion, four hundred sixty-one million, four hundred forty-nine thousand, one hundred eighty-six".