2126639179 has 16 divisors (see below), whose sum is σ = 2537515008. Its totient is φ = 1742618592.

The previous prime is 2126639147. The next prime is 2126639213. The reversal of 2126639179 is 9719366212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2126639179 - 2⁵ = 2126639147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126639479) 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 15 ways as a sum of consecutive naturals, for example, 546589 + ... + 550465.

It is an arithmetic number, because the mean of its divisors is an integer number (158594688).

Almost surely, 2^2126639179 is an apocalyptic number.

2126639179 is a deficient number, since it is larger than the sum of its proper divisors (410875829).

2126639179 is a wasteful number, since it uses less digits than its factorization.

2126639179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314.

The product of its digits is 244944, while the sum is 46.

The square root of 2126639179 is about 46115.4982516724. The cubic root of 2126639179 is about 1285.9712821933.

The spelling of 2126639179 in words is "two billion, one hundred twenty-six million, six hundred thirty-nine thousand, one hundred seventy-nine".