4638195505 has 4 divisors (see below), whose sum is σ = 5565834612. Its totient is φ = 3710556400.

The previous prime is 4638195503. The next prime is 4638195511. The reversal of 4638195505 is 5055918364.

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 2863427121 + 1774768384 = 53511^2 + 42128^2 .

It is not a de Polignac number, because 4638195505 - 2¹ = 4638195503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4638195503) 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, 463819546 + ... + 463819555.

It is an arithmetic number, because the mean of its divisors is an integer number (1391458653).

Almost surely, 2^4638195505 is an apocalyptic number.

It is an amenable number.

4638195505 is a deficient number, since it is larger than the sum of its proper divisors (927639107).

4638195505 is an equidigital number, since it uses as much as digits as its factorization.

4638195505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927639106.

The product of its (nonzero) digits is 648000, while the sum is 46.

The square root of 4638195505 is about 68104.2987262919. The cubic root of 4638195505 is about 1667.6939384087.

The spelling of 4638195505 in words is "four billion, six hundred thirty-eight million, one hundred ninety-five thousand, five hundred five".