14642071247 has 2 divisors, whose sum is σ = 14642071248. Its totient is φ = 14642071246.

The previous prime is 14642071243. The next prime is 14642071267. The reversal of 14642071247 is 74217024641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14642071247 - 2² = 14642071243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14642071247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14642071243) 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, 7321035623 + 7321035624.

It is an arithmetic number, because the mean of its divisors is an integer number (7321035624).

Almost surely, 2^14642071247 is an apocalyptic number.

14642071247 is a deficient number, since it is larger than the sum of its proper divisors (1).

14642071247 is an equidigital number, since it uses as much as digits as its factorization.

14642071247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

Adding to 14642071247 its reverse (74217024641), we get a palindrome (88859095888).

The spelling of 14642071247 in words is "fourteen billion, six hundred forty-two million, seventy-one thousand, two hundred forty-seven".