82642442847 has 16 divisors (see below), whose sum is σ = 114990928128. Its totient is φ = 52694882240.

The previous prime is 82642442819. The next prime is 82642442849. The reversal of 82642442847 is 74824424628.

It is a cyclic number.

It is not a de Polignac number, because 82642442847 - 2⁸ = 82642442591 is a prime.

It is a super-2 number, since 2×82642442847² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 82642442847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82642442849) 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, 845347 + ... + 938027.

It is an arithmetic number, because the mean of its divisors is an integer number (7186933008).

Almost surely, 2^82642442847 is an apocalyptic number.

82642442847 is a deficient number, since it is larger than the sum of its proper divisors (32348485281).

82642442847 is a wasteful number, since it uses less digits than its factorization.

82642442847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105630.

The product of its digits is 5505024, while the sum is 51.

The spelling of 82642442847 in words is "eighty-two billion, six hundred forty-two million, four hundred forty-two thousand, eight hundred forty-seven".