1881512048 has 40 divisors (see below), whose sum is σ = 3937248000. Its totient is φ = 865868544.

The previous prime is 1881512027. The next prime is 1881512053. The reversal of 1881512048 is 8402151881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59633 + ... + 85551.

It is an arithmetic number, because the mean of its divisors is an integer number (98431200).

Almost surely, 2^1881512048 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 1881512048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968624000).

1881512048 is an abundant number, since it is smaller than the sum of its proper divisors (2055735952).

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

1881512048 is a wasteful number, since it uses less digits than its factorization.

1881512048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26289 (or 26283 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 38.

The square root of 1881512048 is about 43376.3996661779. The cubic root of 1881512048 is about 1234.5319513405.

The spelling of 1881512048 in words is "one billion, eight hundred eighty-one million, five hundred twelve thousand, forty-eight".