8641318624320 has 448 divisors, whose sum is σ = 28278105292800. Its totient is φ = 2234472210432.

The previous prime is 8641318624319. The next prime is 8641318624327. The reversal of 8641318624320 is 234268131468.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8641318624320.

It is not an unprimeable number, because it can be changed into a prime (8641318624327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4986334174 + ... + 4986335906.

Almost surely, 2^{8641318624320} is an apocalyptic number.

8641318624320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8641318624320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14139052646400).

8641318624320 is an abundant number, since it is smaller than the sum of its proper divisors (19636786668480).

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

8641318624320 is a wasteful number, since it uses less digits than its factorization.

8641318624320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2592 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 8641318624320 in words is "eight trillion, six hundred forty-one billion, three hundred eighteen million, six hundred twenty-four thousand, three hundred twenty".