9657108898397 has 2 divisors, whose sum is σ = 9657108898398. Its totient is φ = 9657108898396.

The previous prime is 9657108898379. The next prime is 9657108898447. The reversal of 9657108898397 is 7938988017569.

Together with previous prime (9657108898379) 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., 7446671441881 + 2210437456516 = 2728859^2 + 1486754^2 .

It is a cyclic number.

It is not a de Polignac number, because 9657108898397 - 2²⁰ = 9657107849821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9657108898337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4828554449198 + 4828554449199.

It is an arithmetic number, because the mean of its divisors is an integer number (4828554449199).

Almost surely, 2^{9657108898397} is an apocalyptic number.

It is an amenable number.

9657108898397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9657108898397 is an equidigital number, since it uses as much as digits as its factorization.

9657108898397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1646023680, while the sum is 80.

The spelling of 9657108898397 in words is "nine trillion, six hundred fifty-seven billion, one hundred eight million, eight hundred ninety-eight thousand, three hundred ninety-seven".