9948715409 has 2 divisors, whose sum is σ = 9948715410. Its totient is φ = 9948715408.

The previous prime is 9948715369. The next prime is 9948715421. The reversal of 9948715409 is 9045178499.

9948715409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9752155009 + 196560400 = 98753^2 + 14020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9948715409 is a prime.

It is not a weakly prime, because it can be changed into another prime (9948715709) 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, 4974357704 + 4974357705.

It is an arithmetic number, because the mean of its divisors is an integer number (4974357705).

Almost surely, 2^9948715409 is an apocalyptic number.

It is an amenable number.

9948715409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9948715409 is an equidigital number, since it uses as much as digits as its factorization.

9948715409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 9948715409 is about 99743.2474356034. The cubic root of 9948715409 is about 2150.7453993031.

The spelling of 9948715409 in words is "nine billion, nine hundred forty-eight million, seven hundred fifteen thousand, four hundred nine".