82576802820 has 48 divisors (see below), whose sum is σ = 231351422400. Its totient is φ = 22007492736.

The previous prime is 82576802783. The next prime is 82576802821. The reversal of 82576802820 is 2820867528.

It is a self number, because there is not a number n which added to its sum of digits gives 82576802820.

It is not an unprimeable number, because it can be changed into a prime (82576802821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303087 + ... + 506966.

It is an arithmetic number, because the mean of its divisors is an integer number (4819821300).

Almost surely, 2^82576802820 is an apocalyptic number.

It is an amenable number.

82576802820 is an abundant number, since it is smaller than the sum of its proper divisors (148774619580).

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

82576802820 is a wasteful number, since it uses less digits than its factorization.

82576802820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811764 (or 811762 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 82576802820 in words is "eighty-two billion, five hundred seventy-six million, eight hundred two thousand, eight hundred twenty".