18448340198363 has 2 divisors, whose sum is σ = 18448340198364. Its totient is φ = 18448340198362.

The previous prime is 18448340198333. The next prime is 18448340198413. The reversal of 18448340198363 is 36389104384481.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18448340198363 - 2¹² = 18448340194267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18448340198296 and 18448340198305.

It is not a weakly prime, because it can be changed into another prime (18448340198333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9224170099181 + 9224170099182.

It is an arithmetic number, because the mean of its divisors is an integer number (9224170099182).

Almost surely, 2^{18448340198363} is an apocalyptic number.

18448340198363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18448340198363 is an equidigital number, since it uses as much as digits as its factorization.

18448340198363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47775744, while the sum is 62.

The spelling of 18448340198363 in words is "eighteen trillion, four hundred forty-eight billion, three hundred forty million, one hundred ninety-eight thousand, three hundred sixty-three".