12344457889 has 16 divisors (see below), whose sum is σ = 13100425216. Its totient is φ = 11611512000.

The previous prime is 12344457887. The next prime is 12344457901. The reversal of 12344457889 is 98875444321.

It is a cyclic number.

It is not a de Polignac number, because 12344457889 - 2¹ = 12344457887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12344457887) 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, 1241839 + ... + 1251739.

It is an arithmetic number, because the mean of its divisors is an integer number (818776576).

Almost surely, 2^12344457889 is an apocalyptic number.

It is an amenable number.

12344457889 is a deficient number, since it is larger than the sum of its proper divisors (755967327).

12344457889 is a wasteful number, since it uses less digits than its factorization.

12344457889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11056.

The product of its digits is 7741440, while the sum is 55.

The spelling of 12344457889 in words is "twelve billion, three hundred forty-four million, four hundred fifty-seven thousand, eight hundred eighty-nine".