97309969879 has 2 divisors, whose sum is σ = 97309969880. Its totient is φ = 97309969878.

The previous prime is 97309969871. The next prime is 97309969907. The reversal of 97309969879 is 97896990379.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97309969879 - 2³ = 97309969871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97309969871) 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, 48654984939 + 48654984940.

It is an arithmetic number, because the mean of its divisors is an integer number (48654984940).

Almost surely, 2^97309969879 is an apocalyptic number.

97309969879 is a deficient number, since it is larger than the sum of its proper divisors (1).

97309969879 is an equidigital number, since it uses as much as digits as its factorization.

97309969879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 416649744, while the sum is 76.

The spelling of 97309969879 in words is "ninety-seven billion, three hundred nine million, nine hundred sixty-nine thousand, eight hundred seventy-nine".