12194615488845 has 16 divisors (see below), whose sum is σ = 19512906682752. Its totient is φ = 6503287627200.

The previous prime is 12194615488843. The next prime is 12194615488871. The reversal of 12194615488845 is 54888451649121.

It is not a de Polignac number, because 12194615488845 - 2¹ = 12194615488843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12194615488843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31507506 + ... + 31892195.

It is an arithmetic number, because the mean of its divisors is an integer number (1219556667672).

Almost surely, 2^{12194615488845} is an apocalyptic number.

12194615488845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12194615488845 is a deficient number, since it is larger than the sum of its proper divisors (7318291193907).

12194615488845 is a wasteful number, since it uses less digits than its factorization.

12194615488845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63412532.

The product of its digits is 88473600, while the sum is 66.

The spelling of 12194615488845 in words is "twelve trillion, one hundred ninety-four billion, six hundred fifteen million, four hundred eighty-eight thousand, eight hundred forty-five".