18428482481 has 2 divisors, whose sum is σ = 18428482482. Its totient is φ = 18428482480.

The previous prime is 18428482463. The next prime is 18428482537.

18428482481 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12795229456 + 5633253025 = 113116^2 + 75055^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 18428482481 - 2⁶ = 18428482417 is a prime.

It is a super-2 number, since 2×18428482481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18428482411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9214241240 + 9214241241.

It is an arithmetic number, because the mean of its divisors is an integer number (9214241241).

Almost surely, 2^18428482481 is an apocalyptic number.

It is an amenable number.

18428482481 is a deficient number, since it is larger than the sum of its proper divisors (1).

18428482481 is an equidigital number, since it uses as much as digits as its factorization.

18428482481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1048576, while the sum is 50.

The spelling of 18428482481 in words is "eighteen billion, four hundred twenty-eight million, four hundred eighty-two thousand, four hundred eighty-one".