8581887020 has 48 divisors (see below), whose sum is σ = 20651873088. Its totient is φ = 2934455040.

The previous prime is 8581887019. The next prime is 8581887023. The reversal of 8581887020 is 207881858.

It is not an unprimeable number, because it can be changed into a prime (8581887023) 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, 29951 + ... + 134390.

It is an arithmetic number, because the mean of its divisors is an integer number (430247356).

Almost surely, 2^8581887020 is an apocalyptic number.

It is an amenable number.

8581887020 is an abundant number, since it is smaller than the sum of its proper divisors (12069986068).

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

8581887020 is a wasteful number, since it uses less digits than its factorization.

8581887020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164730 (or 164728 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 47.

The square root of 8581887020 is about 92638.4748363227. The cubic root of 8581887020 is about 2047.3602366082.

The spelling of 8581887020 in words is "eight billion, five hundred eighty-one million, eight hundred eighty-seven thousand, twenty".