18497660297 has 2 divisors, whose sum is σ = 18497660298. Its totient is φ = 18497660296.

The previous prime is 18497660287. The next prime is 18497660303. The reversal of 18497660297 is 79206679481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12757476601 + 5740183696 = 112949^2 + 75764^2 .

It is a cyclic number.

It is not a de Polignac number, because 18497660297 - 2⁴ = 18497660281 is a prime.

It is not a weakly prime, because it can be changed into another prime (18497660287) 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, 9248830148 + 9248830149.

It is an arithmetic number, because the mean of its divisors is an integer number (9248830149).

Almost surely, 2^18497660297 is an apocalyptic number.

It is an amenable number.

18497660297 is a deficient number, since it is larger than the sum of its proper divisors (1).

18497660297 is an equidigital number, since it uses as much as digits as its factorization.

18497660297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 18497660297 in words is "eighteen billion, four hundred ninety-seven million, six hundred sixty thousand, two hundred ninety-seven".