82678801326 has 64 divisors (see below), whose sum is σ = 185441308416. Its totient is φ = 24353913600.

The previous prime is 82678801319. The next prime is 82678801349. The reversal of 82678801326 is 62310887628.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2648706 + ... + 2679738.

It is an arithmetic number, because the mean of its divisors is an integer number (2897520444).

Almost surely, 2^82678801326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82678801326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92720654208).

82678801326 is an abundant number, since it is smaller than the sum of its proper divisors (102762507090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82678801326 is a wasteful number, since it uses less digits than its factorization.

82678801326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32177.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 82678801326 in words is "eighty-two billion, six hundred seventy-eight million, eight hundred one thousand, three hundred twenty-six".