2118839814 has 48 divisors (see below), whose sum is σ = 5650243872. Its totient is φ = 558814464.

The previous prime is 2118839813. The next prime is 2118839831. The reversal of 2118839814 is 4189388112.

It is a self number, because there is not a number n which added to its sum of digits gives 2118839814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118839813) 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, 645139 + ... + 648414.

It is an arithmetic number, because the mean of its divisors is an integer number (117713414).

Almost surely, 2^2118839814 is an apocalyptic number.

2118839814 is an abundant number, since it is smaller than the sum of its proper divisors (3531404058).

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

2118839814 is a wasteful number, since it uses less digits than its factorization.

2118839814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293581 (or 1293578 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 2118839814 is about 46030.8571938433. The cubic root of 2118839814 is about 1284.3972734944.

The spelling of 2118839814 in words is "two billion, one hundred eighteen million, eight hundred thirty-nine thousand, eight hundred fourteen".