8217148718 has 4 divisors (see below), whose sum is σ = 12325723080. Its totient is φ = 4108574358.

The previous prime is 8217148631. The next prime is 8217148727. The reversal of 8217148718 is 8178417128.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2054287178 + ... + 2054287181.

It is an arithmetic number, because the mean of its divisors is an integer number (3081430770).

Almost surely, 2^8217148718 is an apocalyptic number.

8217148718 is a deficient number, since it is larger than the sum of its proper divisors (4108574362).

8217148718 is a wasteful number, since it uses less digits than its factorization.

8217148718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108574361.

The product of its digits is 200704, while the sum is 47.

The square root of 8217148718 is about 90648.4898826230. The cubic root of 8217148718 is about 2017.9344240100.

The spelling of 8217148718 in words is "eight billion, two hundred seventeen million, one hundred forty-eight thousand, seven hundred eighteen".