9709049641 has 2 divisors, whose sum is σ = 9709049642. Its totient is φ = 9709049640.

The previous prime is 9709049629. The next prime is 9709049657. The reversal of 9709049641 is 1469409079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9340256025 + 368793616 = 96645^2 + 19204^2 .

It is an emirp because it is prime and its reverse (1469409079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9709049641 - 2⁷ = 9709049513 is a prime.

It is not a weakly prime, because it can be changed into another prime (9709049621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4854524820 + 4854524821.

It is an arithmetic number, because the mean of its divisors is an integer number (4854524821).

Almost surely, 2^9709049641 is an apocalyptic number.

It is an amenable number.

9709049641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9709049641 is an equidigital number, since it uses as much as digits as its factorization.

9709049641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 9709049641 is about 98534.5098988167. The cubic root of 9709049641 is about 2133.3342564748.

The spelling of 9709049641 in words is "nine billion, seven hundred nine million, forty-nine thousand, six hundred forty-one".