2183785489 has 4 divisors (see below), whose sum is σ = 2184033280. Its totient is φ = 2183537700.

The previous prime is 2183785481. The next prime is 2183785511. The reversal of 2183785489 is 9845873812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2183785489 - 2³ = 2183785481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2183785481) 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, 110169 + ... + 128470.

It is an arithmetic number, because the mean of its divisors is an integer number (546008320).

Almost surely, 2^2183785489 is an apocalyptic number.

It is an amenable number.

2183785489 is a deficient number, since it is larger than the sum of its proper divisors (247791).

2183785489 is an equidigital number, since it uses as much as digits as its factorization.

2183785489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247790.

The product of its digits is 3870720, while the sum is 55.

The square root of 2183785489 is about 46730.9906700040. The cubic root of 2183785489 is about 1297.3883443604.

The spelling of 2183785489 in words is "two billion, one hundred eighty-three million, seven hundred eighty-five thousand, four hundred eighty-nine".