8938723218 has 32 divisors (see below), whose sum is σ = 18456837120. Its totient is φ = 2883853440.

The previous prime is 8938723217. The next prime is 8938723229. The reversal of 8938723218 is 8123278398.

It is not an unprimeable number, because it can be changed into a prime (8938723217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63003 + ... + 147806.

It is an arithmetic number, because the mean of its divisors is an integer number (576776160).

Almost surely, 2^8938723218 is an apocalyptic number.

8938723218 is an abundant number, since it is smaller than the sum of its proper divisors (9518113902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8938723218 is a wasteful number, since it uses less digits than its factorization.

8938723218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211042.

The product of its digits is 1161216, while the sum is 51.

The square root of 8938723218 is about 94544.8212119522. The cubic root of 8938723218 is about 2075.3522965387.

The spelling of 8938723218 in words is "eight billion, nine hundred thirty-eight million, seven hundred twenty-three thousand, two hundred eighteen".