8381111853000 has 256 divisors, whose sum is σ = 27083860876800. Its totient is φ = 2155255065600.

The previous prime is 8381111852987. The next prime is 8381111853043. The reversal of 8381111853000 is 3581111838.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8381111853000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71542474 + ... + 71659526.

It is an arithmetic number, because the mean of its divisors is an integer number (105796331550).

Almost surely, 2^{8381111853000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8381111853000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13541930438400).

8381111853000 is an abundant number, since it is smaller than the sum of its proper divisors (18702749023800).

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

8381111853000 is a wasteful number, since it uses less digits than its factorization.

8381111853000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117929 (or 117915 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

Adding to 8381111853000 its reverse (3581111838), we get a palindrome (8384692964838).

The spelling of 8381111853000 in words is "eight trillion, three hundred eighty-one billion, one hundred eleven million, eight hundred fifty-three thousand".