18260224481 has 2 divisors, whose sum is σ = 18260224482. Its totient is φ = 18260224480.

The previous prime is 18260224391. The next prime is 18260224483. The reversal of 18260224481 is 18442206281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17004160000 + 1256064481 = 130400^2 + 35441^2 .

It is a cyclic number.

It is not a de Polignac number, because 18260224481 - 2¹⁴ = 18260208097 is a prime.

It is a super-2 number, since 2×18260224481² (a number of 21 digits) contains 22 as substring.

Together with 18260224483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18260224483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9130112240 + 9130112241.

It is an arithmetic number, because the mean of its divisors is an integer number (9130112241).

Almost surely, 2^18260224481 is an apocalyptic number.

It is an amenable number.

18260224481 is a deficient number, since it is larger than the sum of its proper divisors (1).

18260224481 is an equidigital number, since it uses as much as digits as its factorization.

18260224481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 18260224481 in words is "eighteen billion, two hundred sixty million, two hundred twenty-four thousand, four hundred eighty-one".