2112943968 has 120 divisors (see below), whose sum is σ = 6256958400. Its totient is φ = 699459840.

The previous prime is 2112943949. The next prime is 2112943993. The reversal of 2112943968 is 8693492112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 383473 + ... + 388943.

It is an arithmetic number, because the mean of its divisors is an integer number (52141320).

Almost surely, 2^2112943968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112943968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3128479200).

2112943968 is an abundant number, since it is smaller than the sum of its proper divisors (4144014432).

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

2112943968 is a wasteful number, since it uses less digits than its factorization.

2112943968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642 (or 5625 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 2112943968 is about 45966.7702585248. The cubic root of 2112943968 is about 1283.2048531335.

The spelling of 2112943968 in words is "two billion, one hundred twelve million, nine hundred forty-three thousand, nine hundred sixty-eight".