18004501305 has 48 divisors (see below), whose sum is σ = 35676561024. Its totient is φ = 8228206080.

The previous prime is 18004501303. The next prime is 18004501343. The reversal of 18004501305 is 50310540081.

18004501305 is a `hidden beast` number, since 1 + 80 + 0 + 450 + 130 + 5 = 666.

It is not a de Polignac number, because 18004501305 - 2¹ = 18004501303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18004501303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1481062 + ... + 1493168.

It is an arithmetic number, because the mean of its divisors is an integer number (743261688).

Almost surely, 2^18004501305 is an apocalyptic number.

18004501305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18004501305 is a deficient number, since it is larger than the sum of its proper divisors (17672059719).

18004501305 is a wasteful number, since it uses less digits than its factorization.

18004501305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846 (or 16843 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 18004501305 in words is "eighteen billion, four million, five hundred one thousand, three hundred five".