97323191969 has 2 divisors, whose sum is σ = 97323191970. Its totient is φ = 97323191968.

The previous prime is 97323191929. The next prime is 97323191971. The reversal of 97323191969 is 96919132379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85483140625 + 11840051344 = 292375^2 + 108812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97323191969 is a prime.

It is a super-2 number, since 2×97323191969² (a number of 23 digits) contains 22 as substring.

Together with 97323191971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97323191929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48661595984 + 48661595985.

It is an arithmetic number, because the mean of its divisors is an integer number (48661595985).

Almost surely, 2^97323191969 is an apocalyptic number.

It is an amenable number.

97323191969 is a deficient number, since it is larger than the sum of its proper divisors (1).

97323191969 is an equidigital number, since it uses as much as digits as its factorization.

97323191969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4960116, while the sum is 59.

The spelling of 97323191969 in words is "ninety-seven billion, three hundred twenty-three million, one hundred ninety-one thousand, nine hundred sixty-nine".