82204042878 has 48 divisors (see below), whose sum is σ = 190254725856. Its totient is φ = 25561267200.

The previous prime is 82204042841. The next prime is 82204042903. The reversal of 82204042878 is 87824040228.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1154098 + ... + 1223253.

It is an arithmetic number, because the mean of its divisors is an integer number (3963640122).

Almost surely, 2^82204042878 is an apocalyptic number.

82204042878 is an abundant number, since it is smaller than the sum of its proper divisors (108050682978).

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

82204042878 is a wasteful number, since it uses less digits than its factorization.

82204042878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377489 (or 2377486 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 45.

The spelling of 82204042878 in words is "eighty-two billion, two hundred four million, forty-two thousand, eight hundred seventy-eight".