12963457219 has 4 divisors (see below), whose sum is σ = 13726013544. Its totient is φ = 12200900896.

The previous prime is 12963457217. The next prime is 12963457223. The reversal of 12963457219 is 91275436921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12963457219 - 2¹ = 12963457217 is a prime.

It is a super-2 number, since 2×12963457219² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12963457211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381278137 + ... + 381278170.

It is an arithmetic number, because the mean of its divisors is an integer number (3431503386).

Almost surely, 2^12963457219 is an apocalyptic number.

12963457219 is a deficient number, since it is larger than the sum of its proper divisors (762556325).

12963457219 is an equidigital number, since it uses as much as digits as its factorization.

12963457219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762556324.

The product of its digits is 816480, while the sum is 49.

The spelling of 12963457219 in words is "twelve billion, nine hundred sixty-three million, four hundred fifty-seven thousand, two hundred nineteen".