80868260020 has 12 divisors (see below), whose sum is σ = 169823346084. Its totient is φ = 32347304000.

The previous prime is 80868260003. The next prime is 80868260021. The reversal of 80868260020 is 2006286808.

It can be written as a sum of positive squares in 2 ways, for example, as 15885073296 + 64983186724 = 126036^2 + 254918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80868260021) 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 3 ways as a sum of consecutive naturals, for example, 2021706481 + ... + 2021706520.

It is an arithmetic number, because the mean of its divisors is an integer number (14151945507).

Almost surely, 2^80868260020 is an apocalyptic number.

It is an amenable number.

80868260020 is an abundant number, since it is smaller than the sum of its proper divisors (88955086064).

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

80868260020 is a wasteful number, since it uses less digits than its factorization.

80868260020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043413010 (or 4043413008 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 80868260020 in words is "eighty billion, eight hundred sixty-eight million, two hundred sixty thousand, twenty".