12663414959 has 4 divisors (see below), whose sum is σ = 13637523816. Its totient is φ = 11689306104.

The previous prime is 12663414941. The next prime is 12663414979. The reversal of 12663414959 is 95941436621.

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 12663414959 - 2¹⁶ = 12663349423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663414979) 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, 487054409 + ... + 487054434.

It is an arithmetic number, because the mean of its divisors is an integer number (3409380954).

Almost surely, 2^12663414959 is an apocalyptic number.

12663414959 is a deficient number, since it is larger than the sum of its proper divisors (974108857).

12663414959 is an equidigital number, since it uses as much as digits as its factorization.

12663414959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974108856.

The product of its digits is 1399680, while the sum is 50.

The spelling of 12663414959 in words is "twelve billion, six hundred sixty-three million, four hundred fourteen thousand, nine hundred fifty-nine".