14639869451 has 2 divisors, whose sum is σ = 14639869452. Its totient is φ = 14639869450.

The previous prime is 14639869441. The next prime is 14639869487. The reversal of 14639869451 is 15496893641.

14639869451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14639869451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (14639869441) 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, 7319934725 + 7319934726.

It is an arithmetic number, because the mean of its divisors is an integer number (7319934726).

Almost surely, 2^14639869451 is an apocalyptic number.

14639869451 is a deficient number, since it is larger than the sum of its proper divisors (1).

14639869451 is an equidigital number, since it uses as much as digits as its factorization.

14639869451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 56.

The spelling of 14639869451 in words is "fourteen billion, six hundred thirty-nine million, eight hundred sixty-nine thousand, four hundred fifty-one".