18384034833 has 10 divisors (see below), whose sum is σ = 27462570674. Its totient is φ = 12256023168.

The previous prime is 18384034829. The next prime is 18384034841. The reversal of 18384034833 is 33843048381.

It can be written as a sum of positive squares in only one way, i.e., 18351579024 + 32455809 = 135468^2 + 5697^2 .

It is not a de Polignac number, because 18384034833 - 2² = 18384034829 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18384034843) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 113481616 + ... + 113481777.

Almost surely, 2^18384034833 is an apocalyptic number.

It is an amenable number.

18384034833 is a deficient number, since it is larger than the sum of its proper divisors (9078535841).

18384034833 is an equidigital number, since it uses as much as digits as its factorization.

18384034833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226963405 (or 226963396 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 18384034833 in words is "eighteen billion, three hundred eighty-four million, thirty-four thousand, eight hundred thirty-three".