2118127479 has 16 divisors (see below), whose sum is σ = 3042816000. Its totient is φ = 1302862176.

The previous prime is 2118127471. The next prime is 2118127499. The reversal of 2118127479 is 9747218112.

It is not a de Polignac number, because 2118127479 - 2³ = 2118127471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2118127479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118127471) 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, 82242 + ... + 104880.

It is an arithmetic number, because the mean of its divisors is an integer number (190176000).

Almost surely, 2^2118127479 is an apocalyptic number.

2118127479 is a deficient number, since it is larger than the sum of its proper divisors (924688521).

2118127479 is a wasteful number, since it uses less digits than its factorization.

2118127479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25054.

The product of its digits is 56448, while the sum is 42.

The square root of 2118127479 is about 46023.1189621043. The cubic root of 2118127479 is about 1284.2533230686.

The spelling of 2118127479 in words is "two billion, one hundred eighteen million, one hundred twenty-seven thousand, four hundred seventy-nine".