2180785082 has 20 divisors (see below), whose sum is σ = 3816155226. Its totient is φ = 934620120.

The previous prime is 2180785073. The next prime is 2180785099. The reversal of 2180785082 is 2805870812.

2180785082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2126039881 + 54745201 = 46109^2 + 7399^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 222269 + ... + 231872.

Almost surely, 2^2180785082 is an apocalyptic number.

2180785082 is a deficient number, since it is larger than the sum of its proper divisors (1635370144).

2180785082 is an frugal number, since it uses more digits than its factorization.

2180785082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454171 (or 454150 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 2180785082 is about 46698.8766674317. The cubic root of 2180785082 is about 1296.7938907938.

The spelling of 2180785082 in words is "two billion, one hundred eighty million, seven hundred eighty-five thousand, eighty-two".