45544534489 has 2 divisors, whose sum is σ = 45544534490. Its totient is φ = 45544534488.

The previous prime is 45544534397. The next prime is 45544534513. The reversal of 45544534489 is 98443544554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42401810889 + 3142723600 = 205917^2 + 56060^2 .

It is a cyclic number.

It is not a de Polignac number, because 45544534489 - 2⁹ = 45544533977 is a prime.

It is a super-2 number, since 2×45544534489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45544538489) 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, 22772267244 + 22772267245.

It is an arithmetic number, because the mean of its divisors is an integer number (22772267245).

Almost surely, 2^45544534489 is an apocalyptic number.

It is an amenable number.

45544534489 is a deficient number, since it is larger than the sum of its proper divisors (1).

45544534489 is an equidigital number, since it uses as much as digits as its factorization.

45544534489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648000, while the sum is 55.

The spelling of 45544534489 in words is "forty-five billion, five hundred forty-four million, five hundred thirty-four thousand, four hundred eighty-nine".