180731582252 has 48 divisors (see below), whose sum is σ = 348993170400. Its totient is φ = 81362327040.

The previous prime is 180731582243. The next prime is 180731582287. The reversal of 180731582252 is 252285137081.

It is a super-2 number, since 2×180731582252² (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 15 ways as a sum of consecutive naturals, for example, 17944274 + ... + 17954342.

It is an arithmetic number, because the mean of its divisors is an integer number (7270691050).

Almost surely, 2^180731582252 is an apocalyptic number.

It is an amenable number.

180731582252 is a deficient number, since it is larger than the sum of its proper divisors (168261588148).

180731582252 is a wasteful number, since it uses less digits than its factorization.

180731582252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18546 (or 18544 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 180731582252 in words is "one hundred eighty billion, seven hundred thirty-one million, five hundred eighty-two thousand, two hundred fifty-two".