12344567889 has 8 divisors (see below), whose sum is σ = 17175051072. Its totient is φ = 7871898320.

The previous prime is 12344567849. The next prime is 12344567923. The reversal of 12344567889 is 98876544321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12344567889 - 2¹¹ = 12344565841 is a prime.

It is a super-2 number, since 2×12344567889² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12344567849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89453322 + ... + 89453459.

It is an arithmetic number, because the mean of its divisors is an integer number (2146881384).

Almost surely, 2^12344567889 is an apocalyptic number.

It is an amenable number.

12344567889 is a deficient number, since it is larger than the sum of its proper divisors (4830483183).

12344567889 is a wasteful number, since it uses less digits than its factorization.

12344567889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178906807.

The product of its digits is 11612160, while the sum is 57.

The spelling of 12344567889 in words is "twelve billion, three hundred forty-four million, five hundred sixty-seven thousand, eight hundred eighty-nine".