2189983615 has 4 divisors (see below), whose sum is σ = 2627980344. Its totient is φ = 1751986888.

The previous prime is 2189983583. The next prime is 2189983619. The reversal of 2189983615 is 5163899812.

2189983615 = 12076² + 12077² + ... + 12090².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2189983615 - 2⁵ = 2189983583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189983619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218998357 + ... + 218998366.

It is an arithmetic number, because the mean of its divisors is an integer number (656995086).

Almost surely, 2^2189983615 is an apocalyptic number.

2189983615 is a deficient number, since it is larger than the sum of its proper divisors (437996729).

2189983615 is an equidigital number, since it uses as much as digits as its factorization.

2189983615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437996728.

The product of its digits is 933120, while the sum is 52.

The square root of 2189983615 is about 46797.2607638524. The cubic root of 2189983615 is about 1298.6146217939.

The spelling of 2189983615 in words is "two billion, one hundred eighty-nine million, nine hundred eighty-three thousand, six hundred fifteen".