180172319812 has 12 divisors (see below), whose sum is σ = 318552091900. Its totient is φ = 89157436416.

The previous prime is 180172319731. The next prime is 180172319819. The reversal of 180172319812 is 218913271081.

180172319812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87352166916 + 92820152896 = 295554^2 + 304664^2 .

It is not an unprimeable number, because it can be changed into a prime (180172319819) 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 3 ways as a sum of consecutive naturals, for example, 232180437 + ... + 232181212.

Almost surely, 2^180172319812 is an apocalyptic number.

It is an amenable number.

180172319812 is a deficient number, since it is larger than the sum of its proper divisors (138379772088).

180172319812 is a wasteful number, since it uses less digits than its factorization.

180172319812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464361750 (or 464361748 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 43.

The spelling of 180172319812 in words is "one hundred eighty billion, one hundred seventy-two million, three hundred nineteen thousand, eight hundred twelve".