18173062072 has 32 divisors (see below), whose sum is σ = 37227527280. Its totient is φ = 8248181760.

The previous prime is 18173062057. The next prime is 18173062073. The reversal of 18173062072 is 27026037181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18173062073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94203 + ... + 212650.

Almost surely, 2^18173062072 is an apocalyptic number.

It is an amenable number.

18173062072 is an abundant number, since it is smaller than the sum of its proper divisors (19054465208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18173062072 is a wasteful number, since it uses less digits than its factorization.

18173062072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307543 (or 307539 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 18173062072 in words is "eighteen billion, one hundred seventy-three million, sixty-two thousand, seventy-two".