18011419173 has 16 divisors (see below), whose sum is σ = 29109364800. Its totient is φ = 10916011440.

The previous prime is 18011419171. The next prime is 18011419201. The reversal of 18011419173 is 37191411081.

It is not a de Polignac number, because 18011419173 - 2¹ = 18011419171 is a prime.

It is a super-2 number, since 2×18011419173² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18011419171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30321958 + ... + 30322551.

It is an arithmetic number, because the mean of its divisors is an integer number (1819335300).

Almost surely, 2^18011419173 is an apocalyptic number.

It is an amenable number.

18011419173 is a deficient number, since it is larger than the sum of its proper divisors (11097945627).

18011419173 is a wasteful number, since it uses less digits than its factorization.

18011419173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60644529 (or 60644523 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The spelling of 18011419173 in words is "eighteen billion, eleven million, four hundred nineteen thousand, one hundred seventy-three".