14684140421 has 2 divisors, whose sum is σ = 14684140422. Its totient is φ = 14684140420.

The previous prime is 14684140411. The next prime is 14684140423. The reversal of 14684140421 is 12404148641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10463039521 + 4221100900 = 102289^2 + 64970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14684140421 is a prime.

Together with 14684140423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14684140423) 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, 7342070210 + 7342070211.

It is an arithmetic number, because the mean of its divisors is an integer number (7342070211).

Almost surely, 2^14684140421 is an apocalyptic number.

It is an amenable number.

14684140421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14684140421 is an equidigital number, since it uses as much as digits as its factorization.

14684140421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 14684140421 in words is "fourteen billion, six hundred eighty-four million, one hundred forty thousand, four hundred twenty-one".