9191830020 has 96 divisors (see below), whose sum is σ = 26129271168. Its totient is φ = 2413996032.

The previous prime is 9191830019. The next prime is 9191830033. The reversal of 9191830020 is 200381919.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1675522 + ... + 1680998.

It is an arithmetic number, because the mean of its divisors is an integer number (272179908).

Almost surely, 2^9191830020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9191830020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13064635584).

9191830020 is an abundant number, since it is smaller than the sum of its proper divisors (16937441148).

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

9191830020 is a wasteful number, since it uses less digits than its factorization.

9191830020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909 (or 5907 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 9191830020 is about 95874.0320420498. The cubic root of 9191830020 is about 2094.7586615819.

The spelling of 9191830020 in words is "nine billion, one hundred ninety-one million, eight hundred thirty thousand, twenty".