18240316433 has 8 divisors (see below), whose sum is σ = 18681801600. Its totient is φ = 17801056080.

The previous prime is 18240316421. The next prime is 18240316439. The reversal of 18240316433 is 33461304281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18240316433 - 2⁴ = 18240316417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18240316393 and 18240316402.

It is not an unprimeable number, because it can be changed into a prime (18240316439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539603 + ... + 572408.

It is an arithmetic number, because the mean of its divisors is an integer number (2335225200).

Almost surely, 2^18240316433 is an apocalyptic number.

It is an amenable number.

18240316433 is a deficient number, since it is larger than the sum of its proper divisors (441485167).

18240316433 is a wasteful number, since it uses less digits than its factorization.

18240316433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112407.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 18240316433 in words is "eighteen billion, two hundred forty million, three hundred sixteen thousand, four hundred thirty-three".