14194431947 has 2 divisors, whose sum is σ = 14194431948. Its totient is φ = 14194431946.

The previous prime is 14194431943. The next prime is 14194431971. The reversal of 14194431947 is 74913449141.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14194431947 - 2² = 14194431943 is a prime.

It is not a weakly prime, because it can be changed into another prime (14194431941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7097215973 + 7097215974.

It is an arithmetic number, because the mean of its divisors is an integer number (7097215974).

Almost surely, 2^14194431947 is an apocalyptic number.

14194431947 is a deficient number, since it is larger than the sum of its proper divisors (1).

14194431947 is an equidigital number, since it uses as much as digits as its factorization.

14194431947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The spelling of 14194431947 in words is "fourteen billion, one hundred ninety-four million, four hundred thirty-one thousand, nine hundred forty-seven".