12344454568 has 32 divisors (see below), whose sum is σ = 24213173760. Its totient is φ = 5888963520.

The previous prime is 12344454557. The next prime is 12344454569. The reversal of 12344454568 is 86545444321.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (12344454569) 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, 11448 + ... + 157543.

It is an arithmetic number, because the mean of its divisors is an integer number (756661680).

Almost surely, 2^12344454568 is an apocalyptic number.

It is an amenable number.

12344454568 is a deficient number, since it is larger than the sum of its proper divisors (11868719192).

12344454568 is a wasteful number, since it uses less digits than its factorization.

12344454568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169417 (or 169413 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 46.

Adding to 12344454568 its reverse (86545444321), we get a palindrome (98889898889).

The spelling of 12344454568 in words is "twelve billion, three hundred forty-four million, four hundred fifty-four thousand, five hundred sixty-eight".