14289627421 has 2 divisors, whose sum is σ = 14289627422. Its totient is φ = 14289627420.

The previous prime is 14289627419. The next prime is 14289627437. The reversal of 14289627421 is 12472698241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13084843321 + 1204784100 = 114389^2 + 34710^2 .

It is a cyclic number.

It is not a de Polignac number, because 14289627421 - 2¹ = 14289627419 is a prime.

It is a super-2 number, since 2×14289627421² (a number of 21 digits) contains 22 as substring.

Together with 14289627419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14289627461) 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, 7144813710 + 7144813711.

It is an arithmetic number, because the mean of its divisors is an integer number (7144813711).

Almost surely, 2^14289627421 is an apocalyptic number.

It is an amenable number.

14289627421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14289627421 is an equidigital number, since it uses as much as digits as its factorization.

14289627421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 46.

The spelling of 14289627421 in words is "fourteen billion, two hundred eighty-nine million, six hundred twenty-seven thousand, four hundred twenty-one".