18734284823 has 2 divisors, whose sum is σ = 18734284824. Its totient is φ = 18734284822.

The previous prime is 18734284787. The next prime is 18734284837. The reversal of 18734284823 is 32848243781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18734284823 - 2⁶ = 18734284759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18734284853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9367142411 + 9367142412.

It is an arithmetic number, because the mean of its divisors is an integer number (9367142412).

Almost surely, 2^18734284823 is an apocalyptic number.

18734284823 is a deficient number, since it is larger than the sum of its proper divisors (1).

18734284823 is an equidigital number, since it uses as much as digits as its factorization.

18734284823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 50.

The spelling of 18734284823 in words is "eighteen billion, seven hundred thirty-four million, two hundred eighty-four thousand, eight hundred twenty-three".