191830197084 has 24 divisors (see below), whose sum is σ = 447617802240. Its totient is φ = 63941397744.

The previous prime is 191830197071. The next prime is 191830197103. The reversal of 191830197084 is 480791038191.

It is a happy number.

191830197084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 178627 + ... + 644645.

It is an arithmetic number, because the mean of its divisors is an integer number (18650741760).

Almost surely, 2^191830197084 is an apocalyptic number.

It is an amenable number.

191830197084 is an abundant number, since it is smaller than the sum of its proper divisors (255787605156).

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

191830197084 is a wasteful number, since it uses less digits than its factorization.

191830197084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500329 (or 500327 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 191830197084 in words is "one hundred ninety-one billion, eight hundred thirty million, one hundred ninety-seven thousand, eighty-four".