82987205648 has 20 divisors (see below), whose sum is σ = 167778481728. Its totient is φ = 39689532960.

The previous prime is 82987205641. The next prime is 82987205663. The reversal of 82987205648 is 84650278928.

It is not an unprimeable number, because it can be changed into a prime (82987205641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112753988 + ... + 112754723.

Almost surely, 2^82987205648 is an apocalyptic number.

It is an amenable number.

82987205648 is an abundant number, since it is smaller than the sum of its proper divisors (84791276080).

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

82987205648 is a wasteful number, since it uses less digits than its factorization.

82987205648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225508742 (or 225508736 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 82987205648 in words is "eighty-two billion, nine hundred eighty-seven million, two hundred five thousand, six hundred forty-eight".