12195840471834 has 16 divisors (see below), whose sum is σ = 25452188811072. Its totient is φ = 3888528846048.

The previous prime is 12195840471833. The next prime is 12195840471847. The reversal of 12195840471834 is 43817404859121.

12195840471834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12195840471833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44187827659 + ... + 44187827934.

It is an arithmetic number, because the mean of its divisors is an integer number (1590761800692).

Almost surely, 2^{12195840471834} is an apocalyptic number.

12195840471834 is an abundant number, since it is smaller than the sum of its proper divisors (13256348339238).

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

12195840471834 is a wasteful number, since it uses less digits than its factorization.

12195840471834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88375655621.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 12195840471834 in words is "twelve trillion, one hundred ninety-five billion, eight hundred forty million, four hundred seventy-one thousand, eight hundred thirty-four".