9091820112 has 40 divisors (see below), whose sum is σ = 24723372960. Its totient is φ = 2871100800.

The previous prime is 9091820081. The next prime is 9091820137. The reversal of 9091820112 is 2110281909.

It is a super-2 number, since 2×9091820112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4983639 + ... + 4985462.

It is an arithmetic number, because the mean of its divisors is an integer number (618084324).

Almost surely, 2^9091820112 is an apocalyptic number.

It is an amenable number.

9091820112 is an abundant number, since it is smaller than the sum of its proper divisors (15631552848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9091820112 is a wasteful number, since it uses less digits than its factorization.

9091820112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969131 (or 9969125 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 9091820112 is about 95351.0362397808. The cubic root of 9091820112 is about 2087.1337366038.

The spelling of 9091820112 in words is "nine billion, ninety-one million, eight hundred twenty thousand, one hundred twelve".