82439478988 has 12 divisors (see below), whose sum is σ = 144303822432. Its totient is φ = 41209815440.

The previous prime is 82439478967. The next prime is 82439479037. The reversal of 82439478988 is 88987493428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462308 + ... + 2495563.

It is an arithmetic number, because the mean of its divisors is an integer number (12025318536).

Almost surely, 2^82439478988 is an apocalyptic number.

It is an amenable number.

82439478988 is a deficient number, since it is larger than the sum of its proper divisors (61864343444).

82439478988 is a wasteful number, since it uses less digits than its factorization.

82439478988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962032 (or 4962030 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 70.

The spelling of 82439478988 in words is "eighty-two billion, four hundred thirty-nine million, four hundred seventy-eight thousand, nine hundred eighty-eight".