97685360609 has 2 divisors, whose sum is σ = 97685360610. Its totient is φ = 97685360608.

The previous prime is 97685360527. The next prime is 97685360659. The reversal of 97685360609 is 90606358679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74237176225 + 23448184384 = 272465^2 + 153128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97685360609 is a prime.

It is not a weakly prime, because it can be changed into another prime (97685360659) 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, 48842680304 + 48842680305.

It is an arithmetic number, because the mean of its divisors is an integer number (48842680305).

Almost surely, 2^97685360609 is an apocalyptic number.

It is an amenable number.

97685360609 is a deficient number, since it is larger than the sum of its proper divisors (1).

97685360609 is an equidigital number, since it uses as much as digits as its factorization.

97685360609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 97685360609 in words is "ninety-seven billion, six hundred eighty-five million, three hundred sixty thousand, six hundred nine".