18632535317713 has 2 divisors, whose sum is σ = 18632535317714. Its totient is φ = 18632535317712.

The previous prime is 18632535317699. The next prime is 18632535317717. The reversal of 18632535317713 is 31771353523681.

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., 15432075143424 + 3200460174289 = 3928368^2 + 1788983^2 .

It is an emirp because it is prime and its reverse (31771353523681) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18632535317713 - 2²⁹ = 18631998446801 is a prime.

It is not a weakly prime, because it can be changed into another prime (18632535317717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9316267658856 + 9316267658857.

It is an arithmetic number, because the mean of its divisors is an integer number (9316267658857).

Almost surely, 2^{18632535317713} is an apocalyptic number.

It is an amenable number.

18632535317713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18632535317713 is an equidigital number, since it uses as much as digits as its factorization.

18632535317713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9525600, while the sum is 55.

The spelling of 18632535317713 in words is "eighteen trillion, six hundred thirty-two billion, five hundred thirty-five million, three hundred seventeen thousand, seven hundred thirteen".