9805982453 has 2 divisors, whose sum is σ = 9805982454. Its totient is φ = 9805982452.

The previous prime is 9805982447. The next prime is 9805982467. The reversal of 9805982453 is 3542895089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9018731089 + 787251364 = 94967^2 + 28058^2 .

It is a cyclic number.

It is not a de Polignac number, because 9805982453 - 2⁴ = 9805982437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9805982395 and 9805982404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9805982413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4902991226 + 4902991227.

It is an arithmetic number, because the mean of its divisors is an integer number (4902991227).

Almost surely, 2^9805982453 is an apocalyptic number.

It is an amenable number.

9805982453 is a deficient number, since it is larger than the sum of its proper divisors (1).

9805982453 is an equidigital number, since it uses as much as digits as its factorization.

9805982453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The square root of 9805982453 is about 99025.1607067618. The cubic root of 9805982453 is about 2140.4103249205.

The spelling of 9805982453 in words is "nine billion, eight hundred five million, nine hundred eighty-two thousand, four hundred fifty-three".