2856535272 has 96 divisors (see below), whose sum is σ = 8139647880. Its totient is φ = 903813120.

The previous prime is 2856535271. The next prime is 2856535277. The reversal of 2856535272 is 2725356582.

2856535272 is a `hidden beast` number, since 28 + 56 + 53 + 527 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1783710756 + 1072824516 = 42234^2 + 32754^2 .

It is a super-2 number, since 2×2856535272² = 16319587520360227968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2856535271) 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 23 ways as a sum of consecutive naturals, for example, 96148 + ... + 122300.

Almost surely, 2^2856535272 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 2856535272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4069823940).

2856535272 is an abundant number, since it is smaller than the sum of its proper divisors (5283112608).

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

2856535272 is a wasteful number, since it uses less digits than its factorization.

2856535272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26243 (or 26236 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 2856535272 is about 53446.5646417055. The cubic root of 2856535272 is about 1418.8828202951.

The spelling of 2856535272 in words is "two billion, eight hundred fifty-six million, five hundred thirty-five thousand, two hundred seventy-two".