4638216068 has 12 divisors (see below), whose sum is σ = 8158081932. Its totient is φ = 2307335520.

The previous prime is 4638216053. The next prime is 4638216071. The reversal of 4638216068 is 8606128364.

It can be written as a sum of positive squares in 2 ways, for example, as 2014932544 + 2623283524 = 44888^2 + 51218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942243 + ... + 2943818.

It is an arithmetic number, because the mean of its divisors is an integer number (679840161).

Almost surely, 2^4638216068 is an apocalyptic number.

It is an amenable number.

4638216068 is a deficient number, since it is larger than the sum of its proper divisors (3519865864).

4638216068 is a wasteful number, since it uses less digits than its factorization.

4638216068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886262 (or 5886260 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 4638216068 is about 68104.4496931001. The cubic root of 4638216068 is about 1667.6964029260.

The spelling of 4638216068 in words is "four billion, six hundred thirty-eight million, two hundred sixteen thousand, sixty-eight".