2187082218 has 16 divisors (see below), whose sum is σ = 4374794016. Its totient is φ = 728922480.

The previous prime is 2187082217. The next prime is 2187082253. The reversal of 2187082218 is 8122807812.

It is not an unprimeable number, because it can be changed into a prime (2187082217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27348 + ... + 71568.

It is an arithmetic number, because the mean of its divisors is an integer number (273424626).

Almost surely, 2^2187082218 is an apocalyptic number.

2187082218 is an abundant number, since it is smaller than the sum of its proper divisors (2187711798).

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

2187082218 is a wasteful number, since it uses less digits than its factorization.

2187082218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52469.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 2187082218 is about 46766.2508439580. The cubic root of 2187082218 is about 1298.0408790365.

The spelling of 2187082218 in words is "two billion, one hundred eighty-seven million, eighty-two thousand, two hundred eighteen".