82681637863 has 8 divisors (see below), whose sum is σ = 91211613840. Its totient is φ = 74320572480.

The previous prime is 82681637851. The next prime is 82681637867. The reversal of 82681637863 is 36873618628.

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

It is not a de Polignac number, because 82681637863 - 2⁹ = 82681637351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82681637798 and 82681637807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82681637867) 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, 42226620 + ... + 42228577.

It is an arithmetic number, because the mean of its divisors is an integer number (11401451730).

Almost surely, 2^82681637863 is an apocalyptic number.

82681637863 is a deficient number, since it is larger than the sum of its proper divisors (8529975977).

82681637863 is a wasteful number, since it uses less digits than its factorization.

82681637863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84455297.

The product of its digits is 13934592, while the sum is 58.

The spelling of 82681637863 in words is "eighty-two billion, six hundred eighty-one million, six hundred thirty-seven thousand, eight hundred sixty-three".