9840466897 has 2 divisors, whose sum is σ = 9840466898. Its totient is φ = 9840466896.

The previous prime is 9840466891. The next prime is 9840466903. The reversal of 9840466897 is 7986640489.

It is a balanced prime because it is at equal distance from previous prime (9840466891) and next prime (9840466903).

It can be written as a sum of positive squares in only one way, i.e., 9596357521 + 244109376 = 97961^2 + 15624^2 .

It is an emirp because it is prime and its reverse (7986640489) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9840466897 is a prime.

It is not a weakly prime, because it can be changed into another prime (9840466891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920233448 + 4920233449.

It is an arithmetic number, because the mean of its divisors is an integer number (4920233449).

Almost surely, 2^9840466897 is an apocalyptic number.

It is an amenable number.

9840466897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840466897 is an equidigital number, since it uses as much as digits as its factorization.

9840466897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The square root of 9840466897 is about 99199.1275012034. The cubic root of 9840466897 is about 2142.9164313058.

The spelling of 9840466897 in words is "nine billion, eight hundred forty million, four hundred sixty-six thousand, eight hundred ninety-seven".