97768196329 has 2 divisors, whose sum is σ = 97768196330. Its totient is φ = 97768196328.

The previous prime is 97768196299. The next prime is 97768196363. The reversal of 97768196329 is 92369186779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92355210000 + 5412986329 = 303900^2 + 73573^2 .

It is an emirp because it is prime and its reverse (92369186779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97768196329 - 2¹⁷ = 97768065257 is a prime.

It is not a weakly prime, because it can be changed into another prime (97768196389) 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, 48884098164 + 48884098165.

It is an arithmetic number, because the mean of its divisors is an integer number (48884098165).

Almost surely, 2^97768196329 is an apocalyptic number.

It is an amenable number.

97768196329 is a deficient number, since it is larger than the sum of its proper divisors (1).

97768196329 is an equidigital number, since it uses as much as digits as its factorization.

97768196329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 67.

The spelling of 97768196329 in words is "ninety-seven billion, seven hundred sixty-eight million, one hundred ninety-six thousand, three hundred twenty-nine".