8999559941 has 2 divisors, whose sum is σ = 8999559942. Its totient is φ = 8999559940.

The previous prime is 8999559929. The next prime is 8999559949. The reversal of 8999559941 is 1499559998.

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., 8126121025 + 873438916 = 90145^2 + 29554^2 .

It is a cyclic number.

It is not a de Polignac number, because 8999559941 - 2¹⁴ = 8999543557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8999559949) 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, 4499779970 + 4499779971.

It is an arithmetic number, because the mean of its divisors is an integer number (4499779971).

Almost surely, 2^8999559941 is an apocalyptic number.

It is an amenable number.

8999559941 is a deficient number, since it is larger than the sum of its proper divisors (1).

8999559941 is an equidigital number, since it uses as much as digits as its factorization.

8999559941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47239200, while the sum is 68.

The square root of 8999559941 is about 94866.0104621249. The cubic root of 8999559941 is about 2080.0499202917.

The spelling of 8999559941 in words is "eight billion, nine hundred ninety-nine million, five hundred fifty-nine thousand, nine hundred forty-one".