12143545679 has 2 divisors, whose sum is σ = 12143545680. Its totient is φ = 12143545678.

The previous prime is 12143545651. The next prime is 12143545691. The reversal of 12143545679 is 97654534121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12143545679 - 2¹² = 12143541583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12143545699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071772839 + 6071772840.

It is an arithmetic number, because the mean of its divisors is an integer number (6071772840).

Almost surely, 2^12143545679 is an apocalyptic number.

12143545679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143545679 is an equidigital number, since it uses as much as digits as its factorization.

12143545679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The spelling of 12143545679 in words is "twelve billion, one hundred forty-three million, five hundred forty-five thousand, six hundred seventy-nine".