9954805709 has 2 divisors, whose sum is σ = 9954805710. Its totient is φ = 9954805708.

The previous prime is 9954805691. The next prime is 9954805723. The reversal of 9954805709 is 9075084599.

9954805709 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., 6552416809 + 3402388900 = 80947^2 + 58330^2 .

It is a cyclic number.

It is not a de Polignac number, because 9954805709 - 2²⁴ = 9938028493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9954805909) 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, 4977402854 + 4977402855.

It is an arithmetic number, because the mean of its divisors is an integer number (4977402855).

Almost surely, 2^9954805709 is an apocalyptic number.

It is an amenable number.

9954805709 is a deficient number, since it is larger than the sum of its proper divisors (1).

9954805709 is an equidigital number, since it uses as much as digits as its factorization.

9954805709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 9954805709 is about 99773.7726509327. The cubic root of 9954805709 is about 2151.1841833472.

The spelling of 9954805709 in words is "nine billion, nine hundred fifty-four million, eight hundred five thousand, seven hundred nine".