9091920092 has 12 divisors (see below), whose sum is σ = 15965165496. Its totient is φ = 4530444240.

The previous prime is 9091920091. The next prime is 9091920121. The reversal of 9091920092 is 2900291909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9091920091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3877634 + ... + 3879977.

It is an arithmetic number, because the mean of its divisors is an integer number (1330430458).

Almost surely, 2^9091920092 is an apocalyptic number.

It is an amenable number.

9091920092 is a deficient number, since it is larger than the sum of its proper divisors (6873245404).

9091920092 is a wasteful number, since it uses less digits than its factorization.

9091920092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757908 (or 7757906 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 9091920092 is about 95351.5605116141. The cubic root of 9091920092 is about 2087.1413871022.

The spelling of 9091920092 in words is "nine billion, ninety-one million, nine hundred twenty thousand, ninety-two".