18268481317 has 8 divisors (see below), whose sum is σ = 18326880000. Its totient is φ = 18210170784.

The previous prime is 18268481303. The next prime is 18268481327. The reversal of 18268481317 is 71318486281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18268481317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18268481327) 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, 406284 + ... + 449002.

It is an arithmetic number, because the mean of its divisors is an integer number (2290860000).

Almost surely, 2^18268481317 is an apocalyptic number.

It is an amenable number.

18268481317 is a deficient number, since it is larger than the sum of its proper divisors (58398683).

18268481317 is an equidigital number, since it uses as much as digits as its factorization.

18268481317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44075.

The product of its digits is 516096, while the sum is 49.

The spelling of 18268481317 in words is "eighteen billion, two hundred sixty-eight million, four hundred eighty-one thousand, three hundred seventeen".