180881791204 has 9 divisors (see below), whose sum is σ = 316544623171. Its totient is φ = 90440470300.

The previous prime is 180881791177. The next prime is 180881791213. The reversal of 180881791204 is 402197188081.

The square root of 180881791204 is 425302.

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

180881791204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 744279 + ... + 956929.

Almost surely, 2^180881791204 is an apocalyptic number.

180881791204 is the 425302-nd square number.

It is an amenable number.

180881791204 is a deficient number, since it is larger than the sum of its proper divisors (135662831967).

180881791204 is an frugal number, since it uses more digits than its factorization.

180881791204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425306 (or 212653 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 49.

Multiplying 180881791204 by its sum of digits (49), we get a square (8863207768996 = 2977114²).

The spelling of 180881791204 in words is "one hundred eighty billion, eight hundred eighty-one million, seven hundred ninety-one thousand, two hundred four".