8718068321 has 4 divisors (see below), whose sum is σ = 8807945412. Its totient is φ = 8628191232.

The previous prime is 8718068309. The next prime is 8718068323. The reversal of 8718068321 is 1238608178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1238608178 = 2 ⋅619304089.

It can be written as a sum of positive squares in 2 ways, for example, as 2377927696 + 6340140625 = 48764^2 + 79625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8718068321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8718068323) 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, 44938400 + ... + 44938593.

It is an arithmetic number, because the mean of its divisors is an integer number (2201986353).

Almost surely, 2^8718068321 is an apocalyptic number.

It is an amenable number.

8718068321 is a deficient number, since it is larger than the sum of its proper divisors (89877091).

8718068321 is an equidigital number, since it uses as much as digits as its factorization.

8718068321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89877090.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 8718068321 is about 93370.5966619042. The cubic root of 8718068321 is about 2058.1329362239.

The spelling of 8718068321 in words is "eight billion, seven hundred eighteen million, sixty-eight thousand, three hundred twenty-one".