2149568489 has 8 divisors (see below), whose sum is σ = 2231174400. Its totient is φ = 2068729200.

The previous prime is 2149568471. The next prime is 2149568513. The reversal of 2149568489 is 9848659412.

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

It is not a de Polignac number, because 2149568489 - 2²⁰ = 2148519913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149568429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185939 + ... + 197160.

It is an arithmetic number, because the mean of its divisors is an integer number (278896800).

Almost surely, 2^2149568489 is an apocalyptic number.

It is an amenable number.

2149568489 is a deficient number, since it is larger than the sum of its proper divisors (81605911).

2149568489 is a wasteful number, since it uses less digits than its factorization.

2149568489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383311.

The product of its digits is 4976640, while the sum is 56.

The square root of 2149568489 is about 46363.4391412026. The cubic root of 2149568489 is about 1290.5765283494.

The spelling of 2149568489 in words is "two billion, one hundred forty-nine million, five hundred sixty-eight thousand, four hundred eighty-nine".