12403144768 has 28 divisors (see below), whose sum is σ = 28128561472. Its totient is φ = 5315633280.

The previous prime is 12403144651. The next prime is 12403144781. The reversal of 12403144768 is 86744130421.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12403144768.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13842348 + ... + 13843243.

Almost surely, 2^12403144768 is an apocalyptic number.

It is an amenable number.

12403144768 is an abundant number, since it is smaller than the sum of its proper divisors (15725416704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12403144768 is an equidigital number, since it uses as much as digits as its factorization.

12403144768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27685610 (or 27685600 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 12403144768 in words is "twelve billion, four hundred three million, one hundred forty-four thousand, seven hundred sixty-eight".