8486891020 has 12 divisors (see below), whose sum is σ = 17822471184. Its totient is φ = 3394756400.

The previous prime is 8486891009. The next prime is 8486891027. The reversal of 8486891020 is 201986848.

It is not an unprimeable number, because it can be changed into a prime (8486891027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212172256 + ... + 212172295.

It is an arithmetic number, because the mean of its divisors is an integer number (1485205932).

Almost surely, 2^8486891020 is an apocalyptic number.

It is an amenable number.

8486891020 is an abundant number, since it is smaller than the sum of its proper divisors (9335580164).

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

8486891020 is a wasteful number, since it uses less digits than its factorization.

8486891020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424344560 (or 424344558 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 8486891020 is about 92124.3237152925. The cubic root of 8486891020 is about 2039.7778673293. Note that the first 3 decimals are identical.

The spelling of 8486891020 in words is "eight billion, four hundred eighty-six million, eight hundred ninety-one thousand, twenty".