9999280241 has 2 divisors, whose sum is σ = 9999280242. Its totient is φ = 9999280240.

The previous prime is 9999280217. The next prime is 9999280259. The reversal of 9999280241 is 1420829999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9742479616 + 256800625 = 98704^2 + 16025^2 .

It is an emirp because it is prime and its reverse (1420829999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9999280241 - 2⁶ = 9999280177 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999220241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999640120 + 4999640121.

It is an arithmetic number, because the mean of its divisors is an integer number (4999640121).

Almost surely, 2^9999280241 is an apocalyptic number.

It is an amenable number.

9999280241 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999280241 is an equidigital number, since it uses as much as digits as its factorization.

9999280241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 9999280241 is about 99996.4011402410. The cubic root of 9999280241 is about 2154.3829996664.

The spelling of 9999280241 in words is "nine billion, nine hundred ninety-nine million, two hundred eighty thousand, two hundred forty-one".