18111883456773 has 16 divisors (see below), whose sum is σ = 26832866941440. Its totient is φ = 12074387818752.

The previous prime is 18111883456769. The next prime is 18111883456811. The reversal of 18111883456773 is 37765438811181.

18111883456773 is a `hidden beast` number, since 1 + 81 + 11 + 88 + 345 + 67 + 73 = 666.

It is not a de Polignac number, because 18111883456773 - 2² = 18111883456769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18111883456773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18111883446773) 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, 3927861 + ... + 7186922.

It is an arithmetic number, because the mean of its divisors is an integer number (1677054183840).

Almost surely, 2^{18111883456773} is an apocalyptic number.

It is an amenable number.

18111883456773 is a deficient number, since it is larger than the sum of its proper divisors (8720983484667).

18111883456773 is a wasteful number, since it uses less digits than its factorization.

18111883456773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175145 (or 11175139 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 63.

The spelling of 18111883456773 in words is "eighteen trillion, one hundred eleven billion, eight hundred eighty-three million, four hundred fifty-six thousand, seven hundred seventy-three".