2865532849 has 4 divisors (see below), whose sum is σ = 2908302064. Its totient is φ = 2822763636.

The previous prime is 2865532783. The next prime is 2865532853. The reversal of 2865532849 is 9482355682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2865532849 - 2⁷ = 2865532721 is a prime.

It is a super-2 number, since 2×2865532849² = 16422557017396113602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2865532796 and 2865532805.

It is not an unprimeable number, because it can be changed into a prime (2865532249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21384507 + ... + 21384640.

It is an arithmetic number, because the mean of its divisors is an integer number (727075516).

Almost surely, 2^2865532849 is an apocalyptic number.

It is an amenable number.

2865532849 is a deficient number, since it is larger than the sum of its proper divisors (42769215).

2865532849 is an equidigital number, since it uses as much as digits as its factorization.

2865532849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42769214.

The product of its digits is 4147200, while the sum is 52.

The square root of 2865532849 is about 53530.6720394953. The cubic root of 2865532849 is about 1420.3710015528.

It can be divided in two parts, 28655 and 32849, that added together give a square (61504 = 248²).

The spelling of 2865532849 in words is "two billion, eight hundred sixty-five million, five hundred thirty-two thousand, eight hundred forty-nine".