18448034453 has 2 divisors, whose sum is σ = 18448034454. Its totient is φ = 18448034452.

The previous prime is 18448034411. The next prime is 18448034569. The reversal of 18448034453 is 35443084481.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18397667044 + 50367409 = 135638^2 + 7097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18448034453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18448034753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9224017226 + 9224017227.

It is an arithmetic number, because the mean of its divisors is an integer number (9224017227).

Almost surely, 2^18448034453 is an apocalyptic number.

It is an amenable number.

18448034453 is a deficient number, since it is larger than the sum of its proper divisors (1).

18448034453 is an equidigital number, since it uses as much as digits as its factorization.

18448034453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 737280, while the sum is 44.

The spelling of 18448034453 in words is "eighteen billion, four hundred forty-eight million, thirty-four thousand, four hundred fifty-three".