8361819648000 has 4992 divisors, whose sum is σ = 42178308157440. Its totient is φ = 1588278067200.

The previous prime is 8361819647999. The next prime is 8361819648011. The reversal of 8361819648000 is 8469181638.

8361819648000 is a `hidden beast` number, since 8 + 3 + 618 + 19 + 6 + 4 + 8 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4992).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 363557375989 + ... + 363557376011.

It is an arithmetic number, because the mean of its divisors is an integer number (8449180320).

Almost surely, 2^{8361819648000} is an apocalyptic number.

8361819648000 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 8361819648000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21089154078720).

8361819648000 is an abundant number, since it is smaller than the sum of its proper divisors (33816488509440).

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

8361819648000 is a wasteful number, since it uses less digits than its factorization.

8361819648000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 8361819648000 in words is "eight trillion, three hundred sixty-one billion, eight hundred nineteen million, six hundred forty-eight thousand".