2179423089 has 6 divisors (see below), whose sum is σ = 3148055586. Its totient is φ = 1452948720.

The previous prime is 2179423087. The next prime is 2179423091. The reversal of 2179423089 is 9803249712.

2179423089 is a `hidden beast` number, since 217 + 9 + 423 + 0 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (2179423087) and next prime (2179423091).

It can be written as a sum of positive squares in only one way, i.e., 2179022400 + 400689 = 46680^2 + 633^2 .

It is not a de Polignac number, because 2179423089 - 2¹ = 2179423087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2179423087) 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 5 ways as a sum of consecutive naturals, for example, 121079052 + ... + 121079069.

It is an arithmetic number, because the mean of its divisors is an integer number (524675931).

Almost surely, 2^2179423089 is an apocalyptic number.

It is an amenable number.

2179423089 is a deficient number, since it is larger than the sum of its proper divisors (968632497).

2179423089 is a wasteful number, since it uses less digits than its factorization.

2179423089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242158127 (or 242158124 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2179423089 is about 46684.2916728957. The cubic root of 2179423089 is about 1296.5238669329.

The spelling of 2179423089 in words is "two billion, one hundred seventy-nine million, four hundred twenty-three thousand, eighty-nine".