2125644288 has 80 divisors (see below), whose sum is σ = 5769916416. Its totient is φ = 695152640.

The previous prime is 2125644277. The next prime is 2125644289. The reversal of 2125644288 is 8824465212.

It is not an unprimeable number, because it can be changed into a prime (2125644289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68353 + ... + 94463.

Almost surely, 2^2125644288 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 2125644288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2884958208).

2125644288 is an abundant number, since it is smaller than the sum of its proper divisors (3644272128).

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

2125644288 is an equidigital number, since it uses as much as digits as its factorization.

2125644288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26185 (or 26169 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 2125644288 is about 46104.7100413830. The cubic root of 2125644288 is about 1285.7707152094.

The spelling of 2125644288 in words is "two billion, one hundred twenty-five million, six hundred forty-four thousand, two hundred eighty-eight".