2118718413 has 24 divisors (see below), whose sum is σ = 3524279616. Its totient is φ = 1201449600.

The previous prime is 2118718411. The next prime is 2118718423. The reversal of 2118718413 is 3148178112.

It is not a de Polignac number, because 2118718413 - 2¹ = 2118718411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118718411) 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 23 ways as a sum of consecutive naturals, for example, 120108 + ... + 136613.

It is an arithmetic number, because the mean of its divisors is an integer number (146844984).

Almost surely, 2^2118718413 is an apocalyptic number.

It is an amenable number.

2118718413 is a deficient number, since it is larger than the sum of its proper divisors (1405561203).

2118718413 is a wasteful number, since it uses less digits than its factorization.

2118718413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256865 (or 256862 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 2118718413 is about 46029.5384834565. The cubic root of 2118718413 is about 1284.3727427598.

The spelling of 2118718413 in words is "two billion, one hundred eighteen million, seven hundred eighteen thousand, four hundred thirteen".