2855280128 has 40 divisors (see below), whose sum is σ = 5740151208. Its totient is φ = 1418840064.

The previous prime is 2855280097. The next prime is 2855280133. The reversal of 2855280128 is 8210825582.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66350 + ... + 100562.

Almost surely, 2^2855280128 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 2855280128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2870075604).

2855280128 is an abundant number, since it is smaller than the sum of its proper divisors (2884871080).

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

2855280128 is an equidigital number, since it uses as much as digits as its factorization.

2855280128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34394 (or 34378 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 2855280128 is about 53434.8213059612. The cubic root of 2855280128 is about 1418.6749737266.

The spelling of 2855280128 in words is "two billion, eight hundred fifty-five million, two hundred eighty thousand, one hundred twenty-eight".