17842557097 has 2 divisors, whose sum is σ = 17842557098. Its totient is φ = 17842557096.

The previous prime is 17842557049. The next prime is 17842557137. The reversal of 17842557097 is 79075524871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16121634841 + 1720922256 = 126971^2 + 41484^2 .

It is a cyclic number.

It is not a de Polignac number, because 17842557097 - 2⁷ = 17842556969 is a prime.

It is not a weakly prime, because it can be changed into another prime (17842557697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8921278548 + 8921278549.

It is an arithmetic number, because the mean of its divisors is an integer number (8921278549).

Almost surely, 2^17842557097 is an apocalyptic number.

It is an amenable number.

17842557097 is a deficient number, since it is larger than the sum of its proper divisors (1).

17842557097 is an equidigital number, since it uses as much as digits as its factorization.

17842557097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4939200, while the sum is 55.

The spelling of 17842557097 in words is "seventeen billion, eight hundred forty-two million, five hundred fifty-seven thousand, ninety-seven".