14194431547 has 2 divisors, whose sum is σ = 14194431548. Its totient is φ = 14194431546.

The previous prime is 14194431521. The next prime is 14194431569. The reversal of 14194431547 is 74513449141.

It is a strong prime.

It is an emirp because it is prime and its reverse (74513449141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14194431547 is a prime.

It is not a weakly prime, because it can be changed into another prime (14194431947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7097215773 + 7097215774.

It is an arithmetic number, because the mean of its divisors is an integer number (7097215774).

Almost surely, 2^14194431547 is an apocalyptic number.

14194431547 is a deficient number, since it is larger than the sum of its proper divisors (1).

14194431547 is an equidigital number, since it uses as much as digits as its factorization.

14194431547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The spelling of 14194431547 in words is "fourteen billion, one hundred ninety-four million, four hundred thirty-one thousand, five hundred forty-seven".