2112631884 has 36 divisors (see below), whose sum is σ = 5825743560. Its totient is φ = 640191360.

The previous prime is 2112631783. The next prime is 2112631897. The reversal of 2112631884 is 4881362112.

2112631884 is a `hidden beast` number, since 2 + 1 + 12 + 631 + 8 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 2667069 + ... + 2667860.

It is an arithmetic number, because the mean of its divisors is an integer number (161826210).

Almost surely, 2^2112631884 is an apocalyptic number.

It is an amenable number.

2112631884 is an abundant number, since it is smaller than the sum of its proper divisors (3713111676).

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

2112631884 is a wasteful number, since it uses less digits than its factorization.

2112631884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334950 (or 5334945 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 2112631884 is about 45963.3754635144. The cubic root of 2112631884 is about 1283.1416731300.

Adding to 2112631884 its reverse (4881362112), we get a palindrome (6993993996).

The spelling of 2112631884 in words is "two billion, one hundred twelve million, six hundred thirty-one thousand, eight hundred eighty-four".