180638350338 has 16 divisors (see below), whose sum is σ = 382528271520. Its totient is φ = 56670854976.

The previous prime is 180638350309. The next prime is 180638350393. The reversal of 180638350338 is 833053836081.

It is a super-2 number, since 2×180638350338² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885482008 + ... + 885482211.

It is an arithmetic number, because the mean of its divisors is an integer number (23908016970).

Almost surely, 2^180638350338 is an apocalyptic number.

180638350338 is an abundant number, since it is smaller than the sum of its proper divisors (201889921182).

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

180638350338 is a wasteful number, since it uses less digits than its factorization.

180638350338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770964241.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 180638350338 in words is "one hundred eighty billion, six hundred thirty-eight million, three hundred fifty thousand, three hundred thirty-eight".