14644513469 has 2 divisors, whose sum is σ = 14644513470. Its totient is φ = 14644513468.

The previous prime is 14644513459. The next prime is 14644513561. The reversal of 14644513469 is 96431544641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10720117444 + 3924396025 = 103538^2 + 62645^2 .

It is a cyclic number.

It is not a de Polignac number, because 14644513469 - 2⁴ = 14644513453 is a prime.

It is a super-2 number, since 2×14644513469² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14644513459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7322256734 + 7322256735.

It is an arithmetic number, because the mean of its divisors is an integer number (7322256735).

Almost surely, 2^14644513469 is an apocalyptic number.

It is an amenable number.

14644513469 is a deficient number, since it is larger than the sum of its proper divisors (1).

14644513469 is an equidigital number, since it uses as much as digits as its factorization.

14644513469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 14644513469 in words is "fourteen billion, six hundred forty-four million, five hundred thirteen thousand, four hundred sixty-nine".