8915440949 has 2 divisors, whose sum is σ = 8915440950. Its totient is φ = 8915440948.

The previous prime is 8915440903. The next prime is 8915440999. The reversal of 8915440949 is 9490445198.

8915440949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8109903025 + 805537924 = 90055^2 + 28382^2 .

It is a cyclic number.

It is not a de Polignac number, because 8915440949 - 2²⁴ = 8898663733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8915440949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8915440999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4457720474 + 4457720475.

It is an arithmetic number, because the mean of its divisors is an integer number (4457720475).

Almost surely, 2^8915440949 is an apocalyptic number.

It is an amenable number.

8915440949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8915440949 is an equidigital number, since it uses as much as digits as its factorization.

8915440949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 8915440949 is about 94421.6127218763. The cubic root of 8915440949 is about 2073.5488725898.

The spelling of 8915440949 in words is "eight billion, nine hundred fifteen million, four hundred forty thousand, nine hundred forty-nine".