18104460847 has 8 divisors (see below), whose sum is σ = 19751726160. Its totient is φ = 16457429760.

The previous prime is 18104460841. The next prime is 18104460851. The reversal of 18104460847 is 74806440181.

It is a happy number.

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-18104460847 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 (18104460841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129279 + ... + 230047.

It is an arithmetic number, because the mean of its divisors is an integer number (2468965770).

Almost surely, 2^18104460847 is an apocalyptic number.

18104460847 is a deficient number, since it is larger than the sum of its proper divisors (1647265313).

18104460847 is a wasteful number, since it uses less digits than its factorization.

18104460847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117113.

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 18104460847 in words is "eighteen billion, one hundred four million, four hundred sixty thousand, eight hundred forty-seven".