2112653788 has 24 divisors (see below), whose sum is σ = 4232302592. Its totient is φ = 903924144.

The previous prime is 2112653783. The next prime is 2112653843. The reversal of 2112653788 is 8873562112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112653783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45156 + ... + 79147.

Almost surely, 2^2112653788 is an apocalyptic number.

2112653788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2112653788 is an abundant number, since it is smaller than the sum of its proper divisors (2119648804).

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

2112653788 is a wasteful number, since it uses less digits than its factorization.

2112653788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124921 (or 124919 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 2112653788 is about 45963.6137395658. The cubic root of 2112653788 is about 1283.1461076994.

The spelling of 2112653788 in words is "two billion, one hundred twelve million, six hundred fifty-three thousand, seven hundred eighty-eight".