3812814865 has 8 divisors (see below), whose sum is σ = 4604521320. Its totient is φ = 3030822912.

The previous prime is 3812814853. The next prime is 3812814869. The reversal of 3812814865 is 5684182183.

It can be written as a sum of positive squares in 4 ways, for example, as 62599744 + 3750215121 = 7912^2 + 61239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3812814865 - 2²⁹ = 3275943953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3812814869) 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 7 ways as a sum of consecutive naturals, for example, 2427760 + ... + 2429329.

It is an arithmetic number, because the mean of its divisors is an integer number (575565165).

Almost surely, 2^3812814865 is an apocalyptic number.

It is an amenable number.

3812814865 is a deficient number, since it is larger than the sum of its proper divisors (791706455).

3812814865 is a wasteful number, since it uses less digits than its factorization.

3812814865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857251.

The product of its digits is 368640, while the sum is 46.

The square root of 3812814865 is about 61747.9948257431. The cubic root of 3812814865 is about 1562.2429472816.

The spelling of 3812814865 in words is "three billion, eight hundred twelve million, eight hundred fourteen thousand, eight hundred sixty-five".