12345111789 has 8 divisors (see below), whose sum is σ = 16842943392. Its totient is φ = 8038677360.

The previous prime is 12345111787. The next prime is 12345111809. The reversal of 12345111789 is 98711154321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12345111789 - 2¹ = 12345111787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12345111789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345111787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47849142 + ... + 47849399.

It is an arithmetic number, because the mean of its divisors is an integer number (2105367924).

Almost surely, 2^12345111789 is an apocalyptic number.

It is an amenable number.

12345111789 is a deficient number, since it is larger than the sum of its proper divisors (4497831603).

12345111789 is an equidigital number, since it uses as much as digits as its factorization.

12345111789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95698587.

The product of its digits is 60480, while the sum is 42.

The spelling of 12345111789 in words is "twelve billion, three hundred forty-five million, one hundred eleven thousand, seven hundred eighty-nine".