82668546537473 has 8 divisors (see below), whose sum is σ = 89147487403968. Its totient is φ = 76206723085584.

The previous prime is 82668546537463. The next prime is 82668546537517. The reversal of 82668546537473 is 37473564586628.

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

It is not a de Polignac number, because 82668546537473 - 2³² = 82664251570177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82668546537473.

It is not an unprimeable number, because it can be changed into a prime (82668546537463) 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, 4279343615 + ... + 4279362932.

It is an arithmetic number, because the mean of its divisors is an integer number (11143435925496).

Almost surely, 2^{82668546537473} is an apocalyptic number.

It is an amenable number.

82668546537473 is a deficient number, since it is larger than the sum of its proper divisors (6478940866495).

82668546537473 is a wasteful number, since it uses less digits than its factorization.

82668546537473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558707303.

The product of its digits is 4877107200, while the sum is 74.

The spelling of 82668546537473 in words is "eighty-two trillion, six hundred sixty-eight billion, five hundred forty-six million, five hundred thirty-seven thousand, four hundred seventy-three".