82704828480647 has 16 divisors (see below), whose sum is σ = 84473416015200. Its totient is φ = 80943985449600.

The previous prime is 82704828480629. The next prime is 82704828480649. The reversal of 82704828480647 is 74608482840728.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82704828480647 - 2¹² = 82704828476551 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 (82704828480649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244135772 + ... + 244474302.

It is an arithmetic number, because the mean of its divisors is an integer number (5279588500950).

Almost surely, 2^{82704828480647} is an apocalyptic number.

82704828480647 is a deficient number, since it is larger than the sum of its proper divisors (1768587534553).

82704828480647 is a wasteful number, since it uses less digits than its factorization.

82704828480647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349954.

The product of its (nonzero) digits is 308281344, while the sum is 68.

The spelling of 82704828480647 in words is "eighty-two trillion, seven hundred four billion, eight hundred twenty-eight million, four hundred eighty thousand, six hundred forty-seven".