2128944525 has 48 divisors (see below), whose sum is σ = 3579681600. Its totient is φ = 1116290560.

The previous prime is 2128944511. The next prime is 2128944539. The reversal of 2128944525 is 5254498212.

It is an interprime number because it is at equal distance from previous prime (2128944511) and next prime (2128944539).

It is not a de Polignac number, because 2128944525 - 2⁷ = 2128944397 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 1314166 + ... + 1315784.

It is an arithmetic number, because the mean of its divisors is an integer number (74576700).

Almost surely, 2^2128944525 is an apocalyptic number.

2128944525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2128944525 is a deficient number, since it is larger than the sum of its proper divisors (1450737075).

2128944525 is a wasteful number, since it uses less digits than its factorization.

2128944525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1913 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 2128944525 is about 46140.4868309817. The cubic root of 2128944525 is about 1286.4357926097.

The spelling of 2128944525 in words is "two billion, one hundred twenty-eight million, nine hundred forty-four thousand, five hundred twenty-five".