18498448343 has 2 divisors, whose sum is σ = 18498448344. Its totient is φ = 18498448342.

The previous prime is 18498448333. The next prime is 18498448361. The reversal of 18498448343 is 34384489481.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18498448343 - 2¹⁸ = 18498186199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18498448313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9249224171 + 9249224172.

It is an arithmetic number, because the mean of its divisors is an integer number (9249224172).

Almost surely, 2^18498448343 is an apocalyptic number.

18498448343 is a deficient number, since it is larger than the sum of its proper divisors (1).

18498448343 is an equidigital number, since it uses as much as digits as its factorization.

18498448343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10616832, while the sum is 56.

The spelling of 18498448343 in words is "eighteen billion, four hundred ninety-eight million, four hundred forty-eight thousand, three hundred forty-three".