4489184652581 has 2 divisors, whose sum is σ = 4489184652582. Its totient is φ = 4489184652580.

The previous prime is 4489184652479. The next prime is 4489184652613. The reversal of 4489184652581 is 1852564819844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4141261630081 + 347923022500 = 2035009^2 + 589850^2 .

It is a cyclic number.

It is not a de Polignac number, because 4489184652581 - 2¹⁴ = 4489184636197 is a prime.

It is a super-2 number, since 2×4489184652581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4489184652781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244592326290 + 2244592326291.

It is an arithmetic number, because the mean of its divisors is an integer number (2244592326291).

Almost surely, 2^{4489184652581} is an apocalyptic number.

It is an amenable number.

4489184652581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489184652581 is an equidigital number, since it uses as much as digits as its factorization.

4489184652581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88473600, while the sum is 65.

The spelling of 4489184652581 in words is "four trillion, four hundred eighty-nine billion, one hundred eighty-four million, six hundred fifty-two thousand, five hundred eighty-one".