12116643419 has 2 divisors, whose sum is σ = 12116643420. Its totient is φ = 12116643418.

The previous prime is 12116643403. The next prime is 12116643431. The reversal of 12116643419 is 91434661121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12116643419 - 2⁴ = 12116643403 is a prime.

It is a super-2 number, since 2×12116643419² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12116643479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058321709 + 6058321710.

It is an arithmetic number, because the mean of its divisors is an integer number (6058321710).

Almost surely, 2^12116643419 is an apocalyptic number.

12116643419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12116643419 is an equidigital number, since it uses as much as digits as its factorization.

12116643419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The spelling of 12116643419 in words is "twelve billion, one hundred sixteen million, six hundred forty-three thousand, four hundred nineteen".