82440608280 has 64 divisors (see below), whose sum is σ = 251013219840. Its totient is φ = 21656038272.

The previous prime is 82440608191. The next prime is 82440608281. The reversal of 82440608280 is 8280604428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82440608281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5118864 + ... + 5134943.

It is an arithmetic number, because the mean of its divisors is an integer number (3922081560).

Almost surely, 2^82440608280 is an apocalyptic number.

It is an amenable number.

82440608280 is an abundant number, since it is smaller than the sum of its proper divisors (168572611560).

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

82440608280 is a wasteful number, since it uses less digits than its factorization.

82440608280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253888 (or 10253884 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 82440608280 in words is "eighty-two billion, four hundred forty million, six hundred eight thousand, two hundred eighty".