1881385228800 has 2880 divisors, whose sum is σ = 9213717427200. Its totient is φ = 364290048000.

The previous prime is 1881385228769. The next prime is 1881385228813. The reversal of 1881385228800 is 88225831881.

1881385228800 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 38 + 522 + 8 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2880).

It is a super-2 number, since 2×1881385228800² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 30842380770 + ... + 30842380830.

It is an arithmetic number, because the mean of its divisors is an integer number (3199207440).

Almost surely, 2^{1881385228800} is an apocalyptic number.

1881385228800 is a gapful number since it is divisible by the number (10) 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 1881385228800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4606858713600).

1881385228800 is an abundant number, since it is smaller than the sum of its proper divisors (7332332198400).

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

1881385228800 is a wasteful number, since it uses less digits than its factorization.

1881385228800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 54.

The spelling of 1881385228800 in words is "one trillion, eight hundred eighty-one billion, three hundred eighty-five million, two hundred twenty-eight thousand, eight hundred".