82518840839 has 8 divisors (see below), whose sum is σ = 83994731520. Its totient is φ = 81045525816.

The previous prime is 82518840829. The next prime is 82518840841. The reversal of 82518840839 is 93804881528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82518840839 - 2²⁰ = 82517792263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82518840809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579209 + ... + 707474.

It is an arithmetic number, because the mean of its divisors is an integer number (10499341440).

Almost surely, 2^82518840839 is an apocalyptic number.

82518840839 is a deficient number, since it is larger than the sum of its proper divisors (1475890681).

82518840839 is a wasteful number, since it uses less digits than its factorization.

82518840839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287829.

The product of its (nonzero) digits is 4423680, while the sum is 56.

The spelling of 82518840839 in words is "eighty-two billion, five hundred eighteen million, eight hundred forty thousand, eight hundred thirty-nine".