82668286734826 has 8 divisors (see below), whose sum is σ = 133541078571684. Its totient is φ = 38154593877600.

The previous prime is 82668286734823. The next prime is 82668286734833. The reversal of 82668286734826 is 62843768286628.

It can be written as a sum of positive squares in 2 ways, for example, as 79134634935225 + 3533651799601 = 8895765^2 + 1879801^2 .

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

It is a super-3 number, since 3×82668286734826³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (82668286734823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589774744875 + ... + 1589774744926.

Almost surely, 2^{82668286734826} is an apocalyptic number.

82668286734826 is a deficient number, since it is larger than the sum of its proper divisors (50872791836858).

82668286734826 is a wasteful number, since it uses less digits than its factorization.

82668286734826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179549489816.

The product of its digits is 3567255552, while the sum is 76.

The spelling of 82668286734826 in words is "eighty-two trillion, six hundred sixty-eight billion, two hundred eighty-six million, seven hundred thirty-four thousand, eight hundred twenty-six".