2118562984 has 64 divisors (see below), whose sum is σ = 4363891200. Its totient is φ = 959745024.

The previous prime is 2118562937. The next prime is 2118562991. The reversal of 2118562984 is 4892658112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1920177 + ... + 1921279.

It is an arithmetic number, because the mean of its divisors is an integer number (68185800).

Almost surely, 2^2118562984 is an apocalyptic number.

It is an amenable number.

2118562984 is an abundant number, since it is smaller than the sum of its proper divisors (2245328216).

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

2118562984 is a wasteful number, since it uses less digits than its factorization.

2118562984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1638 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 2118562984 is about 46027.8500910047. The cubic root of 2118562984 is about 1284.3413348339.

It can be divided in two parts, 211856 and 2984, that added together give a triangular number (214840 = T₆₅₅).

The spelling of 2118562984 in words is "two billion, one hundred eighteen million, five hundred sixty-two thousand, nine hundred eighty-four".