2118642411 has 4 divisors (see below), whose sum is σ = 2824856552. Its totient is φ = 1412428272.

The previous prime is 2118642377. The next prime is 2118642413. The reversal of 2118642411 is 1142468112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2118642411 - 2⁷ = 2118642283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118642413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353107066 + ... + 353107071.

It is an arithmetic number, because the mean of its divisors is an integer number (706214138).

Almost surely, 2^2118642411 is an apocalyptic number.

2118642411 is a deficient number, since it is larger than the sum of its proper divisors (706214141).

2118642411 is an equidigital number, since it uses as much as digits as its factorization.

2118642411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706214140.

The product of its digits is 3072, while the sum is 30.

The square root of 2118642411 is about 46028.7128974948. The cubic root of 2118642411 is about 1284.3573850379.

The spelling of 2118642411 in words is "two billion, one hundred eighteen million, six hundred forty-two thousand, four hundred eleven".