2191193092 has 12 divisors (see below), whose sum is σ = 4183186896. Its totient is φ = 995996840.

The previous prime is 2191193041. The next prime is 2191193099. The reversal of 2191193092 is 2903911912.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2191193099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24899878 + ... + 24899965.

It is an arithmetic number, because the mean of its divisors is an integer number (348598908).

Almost surely, 2^2191193092 is an apocalyptic number.

2191193092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2191193092 is a deficient number, since it is larger than the sum of its proper divisors (1991993804).

2191193092 is a wasteful number, since it uses less digits than its factorization.

2191193092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49799858 (or 49799856 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 2191193092 is about 46810.1814993277. The cubic root of 2191193092 is about 1298.8536426784.

The spelling of 2191193092 in words is "two billion, one hundred ninety-one million, one hundred ninety-three thousand, ninety-two".