8581223543 has 2 divisors, whose sum is σ = 8581223544. Its totient is φ = 8581223542.

The previous prime is 8581223533. The next prime is 8581223551. The reversal of 8581223543 is 3453221858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8581223543 - 2¹² = 8581219447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8581223543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8581223533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4290611771 + 4290611772.

It is an arithmetic number, because the mean of its divisors is an integer number (4290611772).

Almost surely, 2^8581223543 is an apocalyptic number.

8581223543 is a deficient number, since it is larger than the sum of its proper divisors (1).

8581223543 is an equidigital number, since it uses as much as digits as its factorization.

8581223543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 41.

The square root of 8581223543 is about 92634.8937657943. The cubic root of 8581223543 is about 2047.3074738754.

The spelling of 8581223543 in words is "eight billion, five hundred eighty-one million, two hundred twenty-three thousand, five hundred forty-three".