4638211138 has 8 divisors (see below), whose sum is σ = 7589800080. Its totient is φ = 2108277780.

The previous prime is 4638211117. The next prime is 4638211139. The reversal of 4638211138 is 8311128364.

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

It is a junction number, because it is equal to n+sod(n) for n = 4638211097 and 4638211106.

It is not an unprimeable number, because it can be changed into a prime (4638211139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105413868 + ... + 105413911.

It is an arithmetic number, because the mean of its divisors is an integer number (948725010).

Almost surely, 2^4638211138 is an apocalyptic number.

4638211138 is a deficient number, since it is larger than the sum of its proper divisors (2951588942).

4638211138 is a wasteful number, since it uses less digits than its factorization.

4638211138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210827792.

The product of its digits is 27648, while the sum is 37.

The square root of 4638211138 is about 68104.4134986860. The cubic root of 4638211138 is about 1667.6958120562.

The spelling of 4638211138 in words is "four billion, six hundred thirty-eight million, two hundred eleven thousand, one hundred thirty-eight".