97098155449 has 2 divisors, whose sum is σ = 97098155450. Its totient is φ = 97098155448.

The previous prime is 97098155423. The next prime is 97098155471. The reversal of 97098155449 is 94455189079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81414350224 + 15683805225 = 285332^2 + 125235^2 .

It is a cyclic number.

It is not a de Polignac number, because 97098155449 - 2¹¹ = 97098153401 is a prime.

It is not a weakly prime, because it can be changed into another prime (97098155149) 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, 48549077724 + 48549077725.

It is an arithmetic number, because the mean of its divisors is an integer number (48549077725).

Almost surely, 2^97098155449 is an apocalyptic number.

It is an amenable number.

97098155449 is a deficient number, since it is larger than the sum of its proper divisors (1).

97098155449 is an equidigital number, since it uses as much as digits as its factorization.

97098155449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 97098155449 in words is "ninety-seven billion, ninety-eight million, one hundred fifty-five thousand, four hundred forty-nine".