2120872768 has 28 divisors (see below), whose sum is σ = 4809837472. Its totient is φ = 908945280.

The previous prime is 2120872753. The next prime is 2120872801. The reversal of 2120872768 is 8672780212.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2366598 + ... + 2367493.

Almost surely, 2^2120872768 is an apocalyptic number.

2120872768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2120872768 is an abundant number, since it is smaller than the sum of its proper divisors (2688964704).

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

2120872768 is an equidigital number, since it uses as much as digits as its factorization.

2120872768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734110 (or 4734100 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 2120872768 is about 46052.9344124780. The cubic root of 2120872768 is about 1284.8079205395.

The spelling of 2120872768 in words is "two billion, one hundred twenty million, eight hundred seventy-two thousand, seven hundred sixty-eight".