8182581836 has 54 divisors (see below), whose sum is σ = 16931504772. Its totient is φ = 3429978240.

The previous prime is 8182581833. The next prime is 8182581871. The reversal of 8182581836 is 6381852818.

It is not an unprimeable number, because it can be changed into a prime (8182581833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7799840 + ... + 7800888.

Almost surely, 2^8182581836 is an apocalyptic number.

It is an amenable number.

8182581836 is an abundant number, since it is smaller than the sum of its proper divisors (8748922936).

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

8182581836 is a wasteful number, since it uses less digits than its factorization.

8182581836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139 (or 1075 counting only the distinct ones).

The product of its digits is 737280, while the sum is 50.

The square root of 8182581836 is about 90457.6245321532. The cubic root of 8182581836 is about 2015.1008482304.

The spelling of 8182581836 in words is "eight billion, one hundred eighty-two million, five hundred eighty-one thousand, eight hundred thirty-six".