82389984080 has 20 divisors (see below), whose sum is σ = 191556713172. Its totient is φ = 32955993600.

The previous prime is 82389984071. The next prime is 82389984109. The reversal of 82389984080 is 8048998328.

It can be written as a sum of positive squares in 2 ways, for example, as 45662561344 + 36727422736 = 213688^2 + 191644^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514937321 + ... + 514937480.

Almost surely, 2^82389984080 is an apocalyptic number.

82389984080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82389984080 is an abundant number, since it is smaller than the sum of its proper divisors (109166729092).

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

82389984080 is a wasteful number, since it uses less digits than its factorization.

82389984080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029874814 (or 1029874808 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 82389984080 in words is "eighty-two billion, three hundred eighty-nine million, nine hundred eighty-four thousand, eighty".