18442609684363 has 2 divisors, whose sum is σ = 18442609684364. Its totient is φ = 18442609684362.

The previous prime is 18442609684223. The next prime is 18442609684399. The reversal of 18442609684363 is 36348690624481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18442609684363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18442609684295 and 18442609684304.

It is not a weakly prime, because it can be changed into another prime (18442609684063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9221304842181 + 9221304842182.

It is an arithmetic number, because the mean of its divisors is an integer number (9221304842182).

Almost surely, 2^{18442609684363} is an apocalyptic number.

18442609684363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18442609684363 is an equidigital number, since it uses as much as digits as its factorization.

18442609684363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143327232, while the sum is 64.

The spelling of 18442609684363 in words is "eighteen trillion, four hundred forty-two billion, six hundred nine million, six hundred eighty-four thousand, three hundred sixty-three".