191109200092 has 48 divisors (see below), whose sum is σ = 350305899552. Its totient is φ = 91127911680.

The previous prime is 191109200059. The next prime is 191109200099. The reversal of 191109200092 is 290002901191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191109200099) 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, 8311003 + ... + 8333965.

It is an arithmetic number, because the mean of its divisors is an integer number (7298039574).

Almost surely, 2^191109200092 is an apocalyptic number.

It is an amenable number.

191109200092 is a deficient number, since it is larger than the sum of its proper divisors (159196699460).

191109200092 is a wasteful number, since it uses less digits than its factorization.

191109200092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24118 (or 24116 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 191109200092 in words is "one hundred ninety-one billion, one hundred nine million, two hundred thousand, ninety-two".