82812755310780 has 192 divisors, whose sum is σ = 254534891692032. Its totient is φ = 19950518396160.

The previous prime is 82812755310749. The next prime is 82812755310823. The reversal of 82812755310780 is 8701355721828.

It is a self number, because there is not a number n which added to its sum of digits gives 82812755310780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 441557787 + ... + 441745293.

It is an arithmetic number, because the mean of its divisors is an integer number (1325702560896).

Almost surely, 2^{82812755310780} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82812755310780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127267445846016).

82812755310780 is an abundant number, since it is smaller than the sum of its proper divisors (171722136381252).

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

82812755310780 is a wasteful number, since it uses less digits than its factorization.

82812755310780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191704 (or 191702 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 57.

The spelling of 82812755310780 in words is "eighty-two trillion, eight hundred twelve billion, seven hundred fifty-five million, three hundred ten thousand, seven hundred eighty".