12389397173881 has 24 divisors (see below), whose sum is σ = 15826861192704. Its totient is φ = 9486387031680.

The previous prime is 12389397173827. The next prime is 12389397173893. The reversal of 12389397173881 is 18837179398321.

It is not a de Polignac number, because 12389397173881 - 2²⁵ = 12389363619449 is a prime.

It is a super-2 number, since 2×12389397173881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12389397173881.

It is not an unprimeable number, because it can be changed into a prime (12389397173821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168880476 + ... + 168953821.

It is an arithmetic number, because the mean of its divisors is an integer number (659452549696).

Almost surely, 2^{12389397173881} is an apocalyptic number.

It is an amenable number.

12389397173881 is a deficient number, since it is larger than the sum of its proper divisors (3437464018823).

12389397173881 is a wasteful number, since it uses less digits than its factorization.

12389397173881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337834361 (or 337834348 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 70.

The spelling of 12389397173881 in words is "twelve trillion, three hundred eighty-nine billion, three hundred ninety-seven million, one hundred seventy-three thousand, eight hundred eighty-one".