2187005216 has 24 divisors (see below), whose sum is σ = 4697091504. Its totient is φ = 994093120.

The previous prime is 2187005201. The next prime is 2187005221. The reversal of 2187005216 is 6125007812.

It is a super-2 number, since 2×2187005216² = 9565983629622413312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3106190 + ... + 3106893.

It is an arithmetic number, because the mean of its divisors is an integer number (195712146).

Almost surely, 2^2187005216 is an apocalyptic number.

It is an amenable number.

2187005216 is an abundant number, since it is smaller than the sum of its proper divisors (2510086288).

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

2187005216 is a wasteful number, since it uses less digits than its factorization.

2187005216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213104 (or 6213096 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2187005216 is about 46765.4275720858. The cubic root of 2187005216 is about 1298.0256452064.

The spelling of 2187005216 in words is "two billion, one hundred eighty-seven million, five thousand, two hundred sixteen".