82020868802 has 8 divisors (see below), whose sum is σ = 123040946700. Its totient is φ = 41007219904.

The previous prime is 82020868771. The next prime is 82020868807. The reversal of 82020868802 is 20886802028.

It can be written as a sum of positive squares in 2 ways, for example, as 71310895681 + 10709973121 = 267041^2 + 103489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (82020868807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575227 + ... + 1626462.

Almost surely, 2^82020868802 is an apocalyptic number.

82020868802 is a deficient number, since it is larger than the sum of its proper divisors (41020077898).

82020868802 is a wasteful number, since it uses less digits than its factorization.

82020868802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214500.

The product of its (nonzero) digits is 196608, while the sum is 44.

The spelling of 82020868802 in words is "eighty-two billion, twenty million, eight hundred sixty-eight thousand, eight hundred two".