2118356344 has 16 divisors (see below), whose sum is σ = 4277450520. Its totient is φ = 977702880.

The previous prime is 2118356309. The next prime is 2118356351. The reversal of 2118356344 is 4436538112.

It is a congruent number.

It is an unprimeable number.

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, 10184302 + ... + 10184509.

Almost surely, 2^2118356344 is an apocalyptic number.

It is an amenable number.

2118356344 is an abundant number, since it is smaller than the sum of its proper divisors (2159094176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118356344 is a wasteful number, since it uses less digits than its factorization.

2118356344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368830 (or 20368826 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 2118356344 is about 46025.6053083498. The cubic root of 2118356344 is about 1284.2995761946.

The spelling of 2118356344 in words is "two billion, one hundred eighteen million, three hundred fifty-six thousand, three hundred forty-four".