8541817836 has 24 divisors (see below), whose sum is σ = 19985226240. Its totient is φ = 2839512912.

The previous prime is 8541817813. The next prime is 8541817931. The reversal of 8541817836 is 6387181458.

It is a happy 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, 965376 + ... + 974183.

It is an arithmetic number, because the mean of its divisors is an integer number (832717760).

Almost surely, 2^8541817836 is an apocalyptic number.

It is an amenable number.

8541817836 is an abundant number, since it is smaller than the sum of its proper divisors (11443408404).

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

8541817836 is a wasteful number, since it uses less digits than its factorization.

8541817836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939933 (or 1939931 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 8541817836 is about 92421.9553785787. The cubic root of 8541817836 is about 2044.1688614622.

The spelling of 8541817836 in words is "eight billion, five hundred forty-one million, eight hundred seventeen thousand, eight hundred thirty-six".