97935824849 has 2 divisors, whose sum is σ = 97935824850. Its totient is φ = 97935824848.

The previous prime is 97935824813. The next prime is 97935824869. The reversal of 97935824849 is 94842853979.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92694064849 + 5241760000 = 304457^2 + 72400^2 .

It is a cyclic number.

It is not a de Polignac number, because 97935824849 - 2¹² = 97935820753 is a prime.

It is not a weakly prime, because it can be changed into another prime (97935824869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48967912424 + 48967912425.

It is an arithmetic number, because the mean of its divisors is an integer number (48967912425).

Almost surely, 2^97935824849 is an apocalyptic number.

It is an amenable number.

97935824849 is a deficient number, since it is larger than the sum of its proper divisors (1).

97935824849 is an equidigital number, since it uses as much as digits as its factorization.

97935824849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 68.

The spelling of 97935824849 in words is "ninety-seven billion, nine hundred thirty-five million, eight hundred twenty-four thousand, eight hundred forty-nine".