9831803263897 has 2 divisors, whose sum is σ = 9831803263898. Its totient is φ = 9831803263896.

The previous prime is 9831803263879. The next prime is 9831803263937. The reversal of 9831803263897 is 7983623081389.

Together with previous prime (9831803263879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7460021540416 + 2371781723481 = 2731304^2 + 1540059^2 .

It is a cyclic number.

It is not a de Polignac number, because 9831803263897 - 2¹⁹ = 9831802739609 is a prime.

It is not a weakly prime, because it can be changed into another prime (9831803263817) 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, 4915901631948 + 4915901631949.

It is an arithmetic number, because the mean of its divisors is an integer number (4915901631949).

Almost surely, 2^{9831803263897} is an apocalyptic number.

It is an amenable number.

9831803263897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9831803263897 is an equidigital number, since it uses as much as digits as its factorization.

9831803263897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 9831803263897 in words is "nine trillion, eight hundred thirty-one billion, eight hundred three million, two hundred sixty-three thousand, eight hundred ninety-seven".