3881895840000 has 1260 divisors, whose sum is σ = 15159047002176. Its totient is φ = 989480448000.

The previous prime is 3881895839909. The next prime is 3881895840013. The reversal of 3881895840000 is 485981883.

3881895840000 is a `hidden beast` number, since 3 + 8 + 8 + 189 + 58 + 400 + 0 + 0 = 666.

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 139 ways as a sum of consecutive naturals, for example, 2682719277 + ... + 2682720723.

Almost surely, 2^{3881895840000} is an apocalyptic number.

3881895840000 is a gapful number since it is divisible by the number (30) 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 3881895840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7579523501088).

3881895840000 is an abundant number, since it is smaller than the sum of its proper divisors (11277151162176).

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

3881895840000 is an frugal number, since it uses more digits than its factorization.

3881895840000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 3881895840000 in words is "three trillion, eight hundred eighty-one billion, eight hundred ninety-five million, eight hundred forty thousand".