12344445556789 has 16 divisors (see below), whose sum is σ = 13118496520320. Its totient is φ = 11593779220800.

The previous prime is 12344445556763. The next prime is 12344445556799. The reversal of 12344445556789 is 98765554444321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12344445556789 - 2¹⁷ = 12344445425717 is a prime.

It is a super-3 number, since 3×12344445556789³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344445556759) 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, 2926752 + ... + 5766694.

It is an arithmetic number, because the mean of its divisors is an integer number (819906032520).

Almost surely, 2^{12344445556789} is an apocalyptic number.

It is an amenable number.

12344445556789 is a deficient number, since it is larger than the sum of its proper divisors (774050963531).

12344445556789 is a wasteful number, since it uses less digits than its factorization.

12344445556789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844060.

The product of its digits is 580608000, while the sum is 67.

The spelling of 12344445556789 in words is "twelve trillion, three hundred forty-four billion, four hundred forty-five million, five hundred fifty-six thousand, seven hundred eighty-nine".