18473118325 has 12 divisors (see below), whose sum is σ = 23043837600. Its totient is φ = 14689997360.

The previous prime is 18473118317. The next prime is 18473118347. The reversal of 18473118325 is 52381137481.

It is not a de Polignac number, because 18473118325 - 2³ = 18473118317 is a prime.

It is a super-2 number, since 2×18473118325² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2208175 + ... + 2216524.

It is an arithmetic number, because the mean of its divisors is an integer number (1920319800).

Almost surely, 2^18473118325 is an apocalyptic number.

It is an amenable number.

18473118325 is a deficient number, since it is larger than the sum of its proper divisors (4570719275).

18473118325 is a wasteful number, since it uses less digits than its factorization.

18473118325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424876 (or 4424871 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The spelling of 18473118325 in words is "eighteen billion, four hundred seventy-three million, one hundred eighteen thousand, three hundred twenty-five".