18769091112 has 72 divisors (see below), whose sum is σ = 52525817370. Its totient is φ = 6054523200.

The previous prime is 18769091071. The next prime is 18769091123. The reversal of 18769091112 is 21119096781.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15024385476 + 3744705636 = 122574^2 + 61194^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 66439 + ... + 204822.

Almost surely, 2^18769091112 is an apocalyptic number.

18769091112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18769091112 is an abundant number, since it is smaller than the sum of its proper divisors (33756726258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18769091112 is a wasteful number, since it uses less digits than its factorization.

18769091112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271335 (or 271297 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 18769091112 in words is "eighteen billion, seven hundred sixty-nine million, ninety-one thousand, one hundred twelve".