1881327168 has 336 divisors, whose sum is σ = 6817400640. Its totient is φ = 505516032.

The previous prime is 1881327157. The next prime is 1881327191. The reversal of 1881327168 is 8617231881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (336).

It is a nude number because it is divisible by every one of its digits.

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, 1438771 + ... + 1440077.

Almost surely, 2^1881327168 is an apocalyptic number.

1881327168 is a gapful number since it is divisible by the number (18) 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 1881327168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3408700320).

1881327168 is an abundant number, since it is smaller than the sum of its proper divisors (4936073472).

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

1881327168 is a wasteful number, since it uses less digits than its factorization.

1881327168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1336 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 1881327168 is about 43374.2685010364. The cubic root of 1881327168 is about 1234.4915144051.

The spelling of 1881327168 in words is "one billion, eight hundred eighty-one million, three hundred twenty-seven thousand, one hundred sixty-eight".