8987881756 has 48 divisors (see below), whose sum is σ = 18279555840. Its totient is φ = 3787297920.

The previous prime is 8987881729. The next prime is 8987881757. The reversal of 8987881756 is 6571887898.

It is a junction number, because it is equal to n+sod(n) for n = 8987881691 and 8987881700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987881757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481200 + ... + 499528.

It is an arithmetic number, because the mean of its divisors is an integer number (380824080).

Almost surely, 2^8987881756 is an apocalyptic number.

It is an amenable number.

8987881756 is an abundant number, since it is smaller than the sum of its proper divisors (9291674084).

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

8987881756 is a wasteful number, since it uses less digits than its factorization.

8987881756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634 (or 18632 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 67.

The square root of 8987881756 is about 94804.4395373972. The cubic root of 8987881756 is about 2079.1498124865.

The spelling of 8987881756 in words is "eight billion, nine hundred eighty-seven million, eight hundred eighty-one thousand, seven hundred fifty-six".