11091928191 has 8 divisors (see below), whose sum is σ = 15188946864. Its totient is φ = 7194764160.

The previous prime is 11091928163. The next prime is 11091928301. The reversal of 11091928191 is 19182919011.

11091928191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11091928191 - 2⁷ = 11091928063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11091968191) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49963530 + ... + 49963751.

It is an arithmetic number, because the mean of its divisors is an integer number (1898618358).

Almost surely, 2^11091928191 is an apocalyptic number.

11091928191 is a deficient number, since it is larger than the sum of its proper divisors (4097018673).

11091928191 is an equidigital number, since it uses as much as digits as its factorization.

11091928191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99927321.

The product of its (nonzero) digits is 11664, while the sum is 42.

The spelling of 11091928191 in words is "eleven billion, ninety-one million, nine hundred twenty-eight thousand, one hundred ninety-one".