2479126189 has 4 divisors (see below), whose sum is σ = 2493971424. Its totient is φ = 2464280956.

The previous prime is 2479126183. The next prime is 2479126229. The reversal of 2479126189 is 9816219742.

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 2479126189 - 2¹⁹ = 2478601901 is a prime.

It is a super-2 number, since 2×2479126189² = 12292133321971327442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479126183) 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 3 ways as a sum of consecutive naturals, for example, 7422367 + ... + 7422700.

It is an arithmetic number, because the mean of its divisors is an integer number (623492856).

Almost surely, 2^2479126189 is an apocalyptic number.

It is an amenable number.

2479126189 is a deficient number, since it is larger than the sum of its proper divisors (14845235).

2479126189 is a wasteful number, since it uses less digits than its factorization.

2479126189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14845234.

The product of its digits is 435456, while the sum is 49.

The square root of 2479126189 is about 49790.8243454555. The cubic root of 2479126189 is about 1353.4208968812.

The spelling of 2479126189 in words is "two billion, four hundred seventy-nine million, one hundred twenty-six thousand, one hundred eighty-nine".