4638366865 has 32 divisors (see below), whose sum is σ = 6298819200. Its totient is φ = 3248017920.

The previous prime is 4638366841. The next prime is 4638366913. The reversal of 4638366865 is 5686638364.

It is a happy number.

4638366865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4638366865 - 2¹¹ = 4638364817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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 31 ways as a sum of consecutive naturals, for example, 600669 + ... + 608341.

It is an arithmetic number, because the mean of its divisors is an integer number (196838100).

Almost surely, 2^4638366865 is an apocalyptic number.

It is an amenable number.

4638366865 is a deficient number, since it is larger than the sum of its proper divisors (1660452335).

4638366865 is a wasteful number, since it uses less digits than its factorization.

4638366865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097.

The product of its digits is 14929920, while the sum is 55.

The square root of 4638366865 is about 68105.5567850377. The cubic root of 4638366865 is about 1667.7144760304.

The spelling of 4638366865 in words is "four billion, six hundred thirty-eight million, three hundred sixty-six thousand, eight hundred sixty-five".