18100082543 has 2 divisors, whose sum is σ = 18100082544. Its totient is φ = 18100082542.

The previous prime is 18100082521. The next prime is 18100082593. The reversal of 18100082543 is 34528000181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18100082543 - 2⁶ = 18100082479 is a prime.

It is a super-2 number, since 2×18100082543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18100082593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9050041271 + 9050041272.

It is an arithmetic number, because the mean of its divisors is an integer number (9050041272).

Almost surely, 2^18100082543 is an apocalyptic number.

18100082543 is a deficient number, since it is larger than the sum of its proper divisors (1).

18100082543 is an equidigital number, since it uses as much as digits as its factorization.

18100082543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 18100082543 in words is "eighteen billion, one hundred million, eighty-two thousand, five hundred forty-three".