9191092012 has 12 divisors (see below), whose sum is σ = 16087794856. Its totient is φ = 4594579200.

The previous prime is 9191091997. The next prime is 9191092019. The reversal of 9191092012 is 2102901919.

It is not an unprimeable number, because it can be changed into a prime (9191092019) 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, 220098 + ... + 258505.

Almost surely, 2^9191092012 is an apocalyptic number.

It is an amenable number.

9191092012 is a deficient number, since it is larger than the sum of its proper divisors (6896702844).

9191092012 is a wasteful number, since it uses less digits than its factorization.

9191092012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483408 (or 483406 counting only the distinct ones).

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

The square root of 9191092012 is about 95870.1831228041. The cubic root of 9191092012 is about 2094.7025976635.

The spelling of 9191092012 in words is "nine billion, one hundred ninety-one million, ninety-two thousand, twelve".