2571128028 has 48 divisors (see below), whose sum is σ = 7618159360. Its totient is φ = 734607792.

The previous prime is 2571128011. The next prime is 2571128047. The reversal of 2571128028 is 8208211752.

2571128028 is a `hidden beast` number, since 2 + 571 + 1 + 2 + 80 + 2 + 8 = 666.

It is a super-2 number, since 2×2571128028² = 13221398672734337568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2571127983 and 2571128001.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1699726 + ... + 1701237.

Almost surely, 2^2571128028 is an apocalyptic number.

2571128028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2571128028 is an abundant number, since it is smaller than the sum of its proper divisors (5047031332).

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

2571128028 is a wasteful number, since it uses less digits than its factorization.

2571128028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400983 (or 3400975 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 2571128028 is about 50706.2917989474. The cubic root of 2571128028 is about 1369.9600442998.

The spelling of 2571128028 in words is "two billion, five hundred seventy-one million, one hundred twenty-eight thousand, twenty-eight".