180504868 has 6 divisors (see below), whose sum is σ = 315883526. Its totient is φ = 90252432.

The previous prime is 180504839. The next prime is 180504869. The reversal of 180504868 is 868405081.

It can be written as a sum of positive squares in only one way, i.e., 115734564 + 64770304 = 10758^2 + 8048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180504868.

It is not an unprimeable number, because it can be changed into a prime (180504869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22563105 + ... + 22563112.

Almost surely, 2^180504868 is an apocalyptic number.

It is an amenable number.

180504868 is a deficient number, since it is larger than the sum of its proper divisors (135378658).

180504868 is a wasteful number, since it uses less digits than its factorization.

180504868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45126221 (or 45126219 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 180504868 is about 13435.2100095235. The cubic root of 180504868 is about 565.1490123056.

The spelling of 180504868 in words is "one hundred eighty million, five hundred four thousand, eight hundred sixty-eight".