8819866241 has 2 divisors, whose sum is σ = 8819866242. Its totient is φ = 8819866240.

The previous prime is 8819866201. The next prime is 8819866243. The reversal of 8819866241 is 1426689188.

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., 8783625841 + 36240400 = 93721^2 + 6020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8819866241 is a prime.

It is a super-3 number, since 3×8819866241³ (a number of 31 digits) contains 333 as substring.

Together with 8819866243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8819866243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4409933120 + 4409933121.

It is an arithmetic number, because the mean of its divisors is an integer number (4409933121).

Almost surely, 2^8819866241 is an apocalyptic number.

It is an amenable number.

8819866241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8819866241 is an equidigital number, since it uses as much as digits as its factorization.

8819866241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 53.

The square root of 8819866241 is about 93914.1429232041. The cubic root of 8819866241 is about 2066.1126636990.

The spelling of 8819866241 in words is "eight billion, eight hundred nineteen million, eight hundred sixty-six thousand, two hundred forty-one".