14754997721 has 2 divisors, whose sum is σ = 14754997722. Its totient is φ = 14754997720.

The previous prime is 14754997711. The next prime is 14754997811. The reversal of 14754997721 is 12779945741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14656492096 + 98505625 = 121064^2 + 9925^2 .

It is an emirp because it is prime and its reverse (12779945741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14754997721 - 2¹⁸ = 14754735577 is a prime.

It is not a weakly prime, because it can be changed into another prime (14754997711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7377498860 + 7377498861.

It is an arithmetic number, because the mean of its divisors is an integer number (7377498861).

Almost surely, 2^14754997721 is an apocalyptic number.

It is an amenable number.

14754997721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14754997721 is an equidigital number, since it uses as much as digits as its factorization.

14754997721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 56.

The spelling of 14754997721 in words is "fourteen billion, seven hundred fifty-four million, nine hundred ninety-seven thousand, seven hundred twenty-one".