544445352463169 has 2 divisors, whose sum is σ = 544445352463170. Its totient is φ = 544445352463168.

The previous prime is 544445352463141. The next prime is 544445352463193. The reversal of 544445352463169 is 961364253544445.

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., 535076470158400 + 9368882304769 = 23131720^2 + 3060863^2 .

It is a cyclic number.

It is not a de Polignac number, because 544445352463169 - 2⁴⁰ = 543345840835393 is a prime.

It is a super-2 number, since 2×544445352463169² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (544445352463469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272222676231584 + 272222676231585.

It is an arithmetic number, because the mean of its divisors is an integer number (272222676231585).

Almost surely, 2^{544445352463169} is an apocalyptic number.

It is an amenable number.

544445352463169 is a deficient number, since it is larger than the sum of its proper divisors (1).

544445352463169 is an equidigital number, since it uses as much as digits as its factorization.

544445352463169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496000, while the sum is 65.

The spelling of 544445352463169 in words is "five hundred forty-four trillion, four hundred forty-five billion, three hundred fifty-two million, four hundred sixty-three thousand, one hundred sixty-nine".