5218306138 has 16 divisors (see below), whose sum is σ = 7893262080. Its totient is φ = 2587249600.

The previous prime is 5218306109. The next prime is 5218306147. The reversal of 5218306138 is 8316038125.

It is a junction number, because it is equal to n+sod(n) for n = 5218306097 and 5218306106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370098 + ... + 383938.

It is an arithmetic number, because the mean of its divisors is an integer number (493328880).

Almost surely, 2^5218306138 is an apocalyptic number.

5218306138 is a deficient number, since it is larger than the sum of its proper divisors (2674955942).

5218306138 is a wasteful number, since it uses less digits than its factorization.

5218306138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 5218306138 is about 72237.8442230940. The cubic root of 5218306138 is about 1734.5088415298.

The spelling of 5218306138 in words is "five billion, two hundred eighteen million, three hundred six thousand, one hundred thirty-eight".