180847768644 has 27 divisors (see below), whose sum is σ = 457149420637. Its totient is φ = 60281739024.

The previous prime is 180847768601. The next prime is 180847768691. The reversal of 180847768644 is 446867748081.

The square root of 180847768644 is 425262.

It is a perfect power (a square), and thus also a powerful number.

180847768644 is a `hidden beast` number, since 1 + 80 + 8 + 477 + 6 + 86 + 4 + 4 = 666.

180847768644 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 only one way, i.e., 179614916100 + 1232852544 = 423810^2 + 35112^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 2516134 + ... + 2587010.

Almost surely, 2^180847768644 is an apocalyptic number.

180847768644 is the 425262-nd square number.

It is an amenable number.

180847768644 is an abundant number, since it is smaller than the sum of its proper divisors (276301651993).

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

180847768644 is an frugal number, since it uses more digits than its factorization.

180847768644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141764 (or 70882 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 180847768644 in words is "one hundred eighty billion, eight hundred forty-seven million, seven hundred sixty-eight thousand, six hundred forty-four".