2856868535 has 16 divisors (see below), whose sum is σ = 3501963072. Its totient is φ = 2236819200.

The previous prime is 2856868523. The next prime is 2856868537. The reversal of 2856868535 is 5358686582.

2856868535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2856868535 - 2³⁰ = 1783126711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856868537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19265 + ... + 78005.

It is an arithmetic number, because the mean of its divisors is an integer number (218872692).

Almost surely, 2^2856868535 is an apocalyptic number.

2856868535 is a deficient number, since it is larger than the sum of its proper divisors (645094537).

2856868535 is a wasteful number, since it uses less digits than its factorization.

2856868535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58954.

The product of its digits is 13824000, while the sum is 56.

The square root of 2856868535 is about 53449.6822722081. The cubic root of 2856868535 is about 1418.9379970170.

The spelling of 2856868535 in words is "two billion, eight hundred fifty-six million, eight hundred sixty-eight thousand, five hundred thirty-five".