180006173501872 has 40 divisors (see below), whose sum is σ = 349606670727600. Its totient is φ = 89785189097472.

The previous prime is 180006173501839. The next prime is 180006173501893. The reversal of 180006173501872 is 278105371600081.

180006173501872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28491279 + ... + 34231057.

It is an arithmetic number, because the mean of its divisors is an integer number (8740166768190).

Almost surely, 2^{180006173501872} is an apocalyptic number.

It is an amenable number.

180006173501872 is a deficient number, since it is larger than the sum of its proper divisors (169600497225728).

180006173501872 is a wasteful number, since it uses less digits than its factorization.

180006173501872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744533 (or 5744527 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 180006173501872 in words is "one hundred eighty trillion, six billion, one hundred seventy-three million, five hundred one thousand, eight hundred seventy-two".