2128537448 has 32 divisors (see below), whose sum is σ = 4047148800. Its totient is φ = 1049335872.

The previous prime is 2128537373. The next prime is 2128537451. The reversal of 2128537448 is 8447358212.

It is a junction number, because it is equal to n+sod(n) for n = 2128537399 and 2128537408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558686 + ... + 562482.

It is an arithmetic number, because the mean of its divisors is an integer number (126473400).

Almost surely, 2^2128537448 is an apocalyptic number.

It is an amenable number.

2128537448 is a deficient number, since it is larger than the sum of its proper divisors (1918611352).

2128537448 is a wasteful number, since it uses less digits than its factorization.

2128537448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4765 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 2128537448 is about 46136.0753424042. The cubic root of 2128537448 is about 1286.3537939482.

The spelling of 2128537448 in words is "two billion, one hundred twenty-eight million, five hundred thirty-seven thousand, four hundred forty-eight".