18060517361 has 2 divisors, whose sum is σ = 18060517362. Its totient is φ = 18060517360.

The previous prime is 18060517327. The next prime is 18060517457. The reversal of 18060517361 is 16371506081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11569153600 + 6491363761 = 107560^2 + 80569^2 .

It is a cyclic number.

It is not a de Polignac number, because 18060517361 - 2¹⁸ = 18060255217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18060517301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9030258680 + 9030258681.

It is an arithmetic number, because the mean of its divisors is an integer number (9030258681).

Almost surely, 2^18060517361 is an apocalyptic number.

It is an amenable number.

18060517361 is a deficient number, since it is larger than the sum of its proper divisors (1).

18060517361 is an equidigital number, since it uses as much as digits as its factorization.

18060517361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 18060517361 in words is "eighteen billion, sixty million, five hundred seventeen thousand, three hundred sixty-one".