12389397173882 has 4 divisors (see below), whose sum is σ = 18584095760826. Its totient is φ = 6194698586940.

The previous prime is 12389397173827. The next prime is 12389397173893. The reversal of 12389397173882 is 28837179398321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10991419639561 + 1397977534321 = 3315331^2 + 1182361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3097349293469 + ... + 3097349293472.

Almost surely, 2^{12389397173882} is an apocalyptic number.

12389397173882 is a deficient number, since it is larger than the sum of its proper divisors (6194698586944).

12389397173882 is an equidigital number, since it uses as much as digits as its factorization.

12389397173882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194698586943.

The product of its digits is 219469824, while the sum is 71.

The spelling of 12389397173882 in words is "twelve trillion, three hundred eighty-nine billion, three hundred ninety-seven million, one hundred seventy-three thousand, eight hundred eighty-two".