82856891329 has 8 divisors (see below), whose sum is σ = 83358462528. Its totient is φ = 82356138480.

The previous prime is 82856891321. The next prime is 82856891371. The reversal of 82856891329 is 92319865828.

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 82856891329 - 2³ = 82856891321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82856891321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 867 + ... + 407080.

It is an arithmetic number, because the mean of its divisors is an integer number (10419807816).

Almost surely, 2^82856891329 is an apocalyptic number.

It is an amenable number.

82856891329 is a deficient number, since it is larger than the sum of its proper divisors (501571199).

82856891329 is a wasteful number, since it uses less digits than its factorization.

82856891329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409175.

The product of its digits is 14929920, while the sum is 61.

The spelling of 82856891329 in words is "eighty-two billion, eight hundred fifty-six million, eight hundred ninety-one thousand, three hundred twenty-nine".