18219467241 has 8 divisors (see below), whose sum is σ = 26991803360. Its totient is φ = 12146311476.

The previous prime is 18219467197. The next prime is 18219467261. The reversal of 18219467241 is 14276491281.

18219467241 is a `hidden beast` number, since 182 + 1 + 9 + 467 + 2 + 4 + 1 = 666.

It is not a de Polignac number, because 18219467241 - 2⁷ = 18219467113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18219467261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337397515 + ... + 337397568.

It is an arithmetic number, because the mean of its divisors is an integer number (3373975420).

Almost surely, 2^18219467241 is an apocalyptic number.

It is an amenable number.

18219467241 is a deficient number, since it is larger than the sum of its proper divisors (8772336119).

18219467241 is an equidigital number, since it uses as much as digits as its factorization.

18219467241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674795092 (or 674795086 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 18219467241 in words is "eighteen billion, two hundred nineteen million, four hundred sixty-seven thousand, two hundred forty-one".