3618286865 has 4 divisors (see below), whose sum is σ = 4341944244. Its totient is φ = 2894629488.

The previous prime is 3618286843. The next prime is 3618286871. The reversal of 3618286865 is 5686828163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2240318224 + 1377968641 = 47332^2 + 37121^2 .

It is a cyclic number.

It is not a de Polignac number, because 3618286865 - 2¹⁰ = 3618285841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 361828682 + ... + 361828691.

It is an arithmetic number, because the mean of its divisors is an integer number (1085486061).

Almost surely, 2^3618286865 is an apocalyptic number.

It is an amenable number.

3618286865 is a deficient number, since it is larger than the sum of its proper divisors (723657379).

3618286865 is an equidigital number, since it uses as much as digits as its factorization.

3618286865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723657378.

The product of its digits is 3317760, while the sum is 53.

The square root of 3618286865 is about 60152.1975076555. The cubic root of 3618286865 is about 1535.2095566378.

The spelling of 3618286865 in words is "three billion, six hundred eighteen million, two hundred eighty-six thousand, eight hundred sixty-five".