2187380289 has 8 divisors (see below), whose sum is σ = 2960037280. Its totient is φ = 1436488416.

The previous prime is 2187380267. The next prime is 2187380357. The reversal of 2187380289 is 9820837812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2187380289 - 2⁷ = 2187380161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2187380389) 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, 5441044 + ... + 5441445.

It is an arithmetic number, because the mean of its divisors is an integer number (370004660).

Almost surely, 2^2187380289 is an apocalyptic number.

It is an amenable number.

2187380289 is a deficient number, since it is larger than the sum of its proper divisors (772656991).

2187380289 is a wasteful number, since it uses less digits than its factorization.

2187380289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10882559.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 2187380289 is about 46769.4375527438. The cubic root of 2187380289 is about 1298.0998450818.

The spelling of 2187380289 in words is "two billion, one hundred eighty-seven million, three hundred eighty thousand, two hundred eighty-nine".