8618337321 has 16 divisors (see below), whose sum is σ = 12547120320. Its totient is φ = 5218502720.

The previous prime is 8618337317. The next prime is 8618337361. The reversal of 8618337321 is 1237338168.

It is a cyclic number.

It is not a de Polignac number, because 8618337321 - 2² = 8618337317 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8618337361) 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, 81150 + ... + 154343.

It is an arithmetic number, because the mean of its divisors is an integer number (784195020).

Almost surely, 2^8618337321 is an apocalyptic number.

It is an amenable number.

8618337321 is a deficient number, since it is larger than the sum of its proper divisors (3928782999).

8618337321 is a wasteful number, since it uses less digits than its factorization.

8618337321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236616.

The product of its digits is 145152, while the sum is 42.

The square root of 8618337321 is about 92835.0005170464. Note that the first 3 decimals coincide. The cubic root of 8618337321 is about 2050.2547627859.

The spelling of 8618337321 in words is "eight billion, six hundred eighteen million, three hundred thirty-seven thousand, three hundred twenty-one".