191092768 has 24 divisors (see below), whose sum is σ = 376584768. Its totient is φ = 95452224.

The previous prime is 191092751. The next prime is 191092787. The reversal of 191092768 is 867290191.

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, 39405 + ... + 43987.

It is an arithmetic number, because the mean of its divisors is an integer number (15691032).

Almost surely, 2^191092768 is an apocalyptic number.

It is an amenable number.

191092768 is a deficient number, since it is larger than the sum of its proper divisors (185492000).

191092768 is a wasteful number, since it uses less digits than its factorization.

191092768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5888 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 191092768 is about 13823.6307821064. The cubic root of 191092768 is about 575.9897439017.

The spelling of 191092768 in words is "one hundred ninety-one million, ninety-two thousand, seven hundred sixty-eight".