17813228180272 has 80 divisors (see below), whose sum is σ = 39513495028032. Its totient is φ = 7620717588480.

The previous prime is 17813228180221. The next prime is 17813228180309. The reversal of 17813228180272 is 27208182231871.

It is a super-2 number, since 2×17813228180272² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184964772 + ... + 185061052.

Almost surely, 2^{17813228180272} is an apocalyptic number.

It is an amenable number.

17813228180272 is an abundant number, since it is smaller than the sum of its proper divisors (21700266847760).

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

17813228180272 is a wasteful number, since it uses less digits than its factorization.

17813228180272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99206 (or 99200 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 52.

The spelling of 17813228180272 in words is "seventeen trillion, eight hundred thirteen billion, two hundred twenty-eight million, one hundred eighty thousand, two hundred seventy-two".