14638856719 has 2 divisors, whose sum is σ = 14638856720. Its totient is φ = 14638856718.

The previous prime is 14638856681. The next prime is 14638856741. The reversal of 14638856719 is 91765883641.

14638856719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (91765883641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14638856719 is a prime.

It is a super-2 number, since 2×14638856719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14638854719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7319428359 + 7319428360.

It is an arithmetic number, because the mean of its divisors is an integer number (7319428360).

Almost surely, 2^14638856719 is an apocalyptic number.

14638856719 is a deficient number, since it is larger than the sum of its proper divisors (1).

14638856719 is an equidigital number, since it uses as much as digits as its factorization.

14638856719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 58.

The spelling of 14638856719 in words is "fourteen billion, six hundred thirty-eight million, eight hundred fifty-six thousand, seven hundred nineteen".