4412421581 has 2 divisors, whose sum is σ = 4412421582. Its totient is φ = 4412421580.

The previous prime is 4412421577. The next prime is 4412421583. The reversal of 4412421581 is 1851242144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2607021481 + 1805400100 = 51059^2 + 42490^2 .

It is a cyclic number.

It is not a de Polignac number, because 4412421581 - 2² = 4412421577 is a prime.

It is a super-2 number, since 2×4412421581² = 38938928416949079122, which contains 22 as substring.

Together with 4412421583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4412421583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2206210790 + 2206210791.

It is an arithmetic number, because the mean of its divisors is an integer number (2206210791).

Almost surely, 2^4412421581 is an apocalyptic number.

It is an amenable number.

4412421581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4412421581 is an equidigital number, since it uses as much as digits as its factorization.

4412421581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10240, while the sum is 32.

The square root of 4412421581 is about 66426.0610077099. The cubic root of 4412421581 is about 1640.1831023255.

The spelling of 4412421581 in words is "four billion, four hundred twelve million, four hundred twenty-one thousand, five hundred eighty-one".