18642352363 has 2 divisors, whose sum is σ = 18642352364. Its totient is φ = 18642352362.

The previous prime is 18642352343. The next prime is 18642352387. The reversal of 18642352363 is 36325324681.

It is a weak prime.

It is an emirp because it is prime and its reverse (36325324681) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18642352363 is a prime.

It is not a weakly prime, because it can be changed into another prime (18642352343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9321176181 + 9321176182.

It is an arithmetic number, because the mean of its divisors is an integer number (9321176182).

Almost surely, 2^18642352363 is an apocalyptic number.

18642352363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18642352363 is an equidigital number, since it uses as much as digits as its factorization.

18642352363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 43.

The spelling of 18642352363 in words is "eighteen billion, six hundred forty-two million, three hundred fifty-two thousand, three hundred sixty-three".