1881325056 has 160 divisors (see below), whose sum is σ = 5477649408. Its totient is φ = 570286080.

The previous prime is 1881325049. The next prime is 1881325097. The reversal of 1881325056 is 6505231881.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417065 + ... + 1418391.

Almost surely, 2^1881325056 is an apocalyptic number.

1881325056 is a gapful number since it is divisible by the number (16) 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 1881325056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738824704).

1881325056 is an abundant number, since it is smaller than the sum of its proper divisors (3596324352).

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

1881325056 is a wasteful number, since it uses less digits than its factorization.

1881325056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 1881325056 is about 43374.2441547977. The cubic root of 1881325056 is about 1234.4910524534.

The spelling of 1881325056 in words is "one billion, eight hundred eighty-one million, three hundred twenty-five thousand, fifty-six".