14397462721 has 2 divisors, whose sum is σ = 14397462722. Its totient is φ = 14397462720.

The previous prime is 14397462683. The next prime is 14397462767. The reversal of 14397462721 is 12726479341.

14397462721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (14397462767) can be obtained adding 14397462721 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7878515121 + 6518947600 = 88761^2 + 80740^2 .

It is an emirp because it is prime and its reverse (12726479341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14397462721 - 2⁷ = 14397462593 is a prime.

It is not a weakly prime, because it can be changed into another prime (14397462221) 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, 7198731360 + 7198731361.

It is an arithmetic number, because the mean of its divisors is an integer number (7198731361).

Almost surely, 2^14397462721 is an apocalyptic number.

It is an amenable number.

14397462721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14397462721 is an equidigital number, since it uses as much as digits as its factorization.

14397462721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The spelling of 14397462721 in words is "fourteen billion, three hundred ninety-seven million, four hundred sixty-two thousand, seven hundred twenty-one".