8213840397360 has 240 divisors, whose sum is σ = 29816350881408. Its totient is φ = 2014407014400.

The previous prime is 8213840397331. The next prime is 8213840397379. The reversal of 8213840397360 is 637930483128.

8213840397360 is a `hidden beast` number, since 8 + 213 + 8 + 4 + 0 + 397 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 8213840397297 and 8213840397306.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 917470 + ... + 4155650.

Almost surely, 2^{8213840397360} is an apocalyptic number.

8213840397360 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 8213840397360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14908175440704).

8213840397360 is an abundant number, since it is smaller than the sum of its proper divisors (21602510484048).

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

8213840397360 is a wasteful number, since it uses less digits than its factorization.

8213840397360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238484 (or 3238475 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 8213840397360 in words is "eight trillion, two hundred thirteen billion, eight hundred forty million, three hundred ninety-seven thousand, three hundred sixty".