191118768 has 20 divisors (see below), whose sum is σ = 493723608. Its totient is φ = 63706240.

The previous prime is 191118757. The next prime is 191118793. The reversal of 191118768 is 867811191.

191118768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1990773 + ... + 1990868.

Almost surely, 2^191118768 is an apocalyptic number.

It is an amenable number.

191118768 is an abundant number, since it is smaller than the sum of its proper divisors (302604840).

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

191118768 is a wasteful number, since it uses less digits than its factorization.

191118768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981652 (or 3981646 counting only the distinct ones).

The product of its digits is 24192, while the sum is 42.

The square root of 191118768 is about 13824.5711687560. The cubic root of 191118768 is about 576.0158656895.

The spelling of 191118768 in words is "one hundred ninety-one million, one hundred eighteen thousand, seven hundred sixty-eight".