18814745248843 has 2 divisors, whose sum is σ = 18814745248844. Its totient is φ = 18814745248842.

The previous prime is 18814745248807. The next prime is 18814745248847. The reversal of 18814745248843 is 34884254741881.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34884254741881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18814745248843 is a prime.

It is not a weakly prime, because it can be changed into another prime (18814745248847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9407372624421 + 9407372624422.

It is an arithmetic number, because the mean of its divisors is an integer number (9407372624422).

Almost surely, 2^{18814745248843} is an apocalyptic number.

18814745248843 is a deficient number, since it is larger than the sum of its proper divisors (1).

18814745248843 is an equidigital number, since it uses as much as digits as its factorization.

18814745248843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220200960, while the sum is 67.

It can be divided in two parts, 1881474 and 5248843, that added together give a palindrome (7130317).

The spelling of 18814745248843 in words is "eighteen trillion, eight hundred fourteen billion, seven hundred forty-five million, two hundred forty-eight thousand, eight hundred forty-three".