8979218819 has 8 divisors (see below), whose sum is σ = 9153034560. Its totient is φ = 8805566016.

The previous prime is 8979218803. The next prime is 8979218861. The reversal of 8979218819 is 9188129798.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8979218819 - 2⁴ = 8979218803 is a prime.

It is a super-2 number, since 2×8979218819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8979218519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73622 + ... + 152900.

It is an arithmetic number, because the mean of its divisors is an integer number (1144129320).

Almost surely, 2^8979218819 is an apocalyptic number.

8979218819 is a deficient number, since it is larger than the sum of its proper divisors (173815741).

8979218819 is a wasteful number, since it uses less digits than its factorization.

8979218819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81469.

The product of its digits is 5225472, while the sum is 62.

The square root of 8979218819 is about 94758.7400665501. The cubic root of 8979218819 is about 2078.4816041064.

The spelling of 8979218819 in words is "eight billion, nine hundred seventy-nine million, two hundred eighteen thousand, eight hundred nineteen".