18361500341 has 2 divisors, whose sum is σ = 18361500342. Its totient is φ = 18361500340.

The previous prime is 18361500337. The next prime is 18361500397. The reversal of 18361500341 is 14300516381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15568800625 + 2792699716 = 124775^2 + 52846^2 .

It is a cyclic number.

It is not a de Polignac number, because 18361500341 - 2² = 18361500337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18361500298 and 18361500307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18361500331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9180750170 + 9180750171.

It is an arithmetic number, because the mean of its divisors is an integer number (9180750171).

Almost surely, 2^18361500341 is an apocalyptic number.

It is an amenable number.

18361500341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18361500341 is an equidigital number, since it uses as much as digits as its factorization.

18361500341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 18361500341 in words is "eighteen billion, three hundred sixty-one million, five hundred thousand, three hundred forty-one".