14744144561 has 2 divisors, whose sum is σ = 14744144562. Its totient is φ = 14744144560.

The previous prime is 14744144551. The next prime is 14744144567. The reversal of 14744144561 is 16544144741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13265280625 + 1478863936 = 115175^2 + 38456^2 .

It is an emirp because it is prime and its reverse (16544144741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14744144561 is a prime.

It is not a weakly prime, because it can be changed into another prime (14744144567) 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, 7372072280 + 7372072281.

It is an arithmetic number, because the mean of its divisors is an integer number (7372072281).

Almost surely, 2^14744144561 is an apocalyptic number.

It is an amenable number.

14744144561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14744144561 is an equidigital number, since it uses as much as digits as its factorization.

14744144561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 41.

The spelling of 14744144561 in words is "fourteen billion, seven hundred forty-four million, one hundred forty-four thousand, five hundred sixty-one".