180728714884 has 9 divisors (see below), whose sum is σ = 316276738981. Its totient is φ = 90363932320.

The previous prime is 180728714797. The next prime is 180728714897. The reversal of 180728714884 is 488417827081.

It is a happy number.

The square root of 180728714884 is 425122.

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

It can be written as a sum of positive squares in only one way, i.e., 177475153284 + 3253561600 = 421278^2 + 57040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 743964 + ... + 956524.

Almost surely, 2^180728714884 is an apocalyptic number.

180728714884 is the 425122-nd square number.

It is an amenable number.

180728714884 is a deficient number, since it is larger than the sum of its proper divisors (135548024097).

180728714884 is an frugal number, since it uses more digits than its factorization.

180728714884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425126 (or 212563 counting only the distinct ones).

The product of its (nonzero) digits is 6422528, while the sum is 58.

The spelling of 180728714884 in words is "one hundred eighty billion, seven hundred twenty-eight million, seven hundred fourteen thousand, eight hundred eighty-four".