80782042812 has 12 divisors (see below), whose sum is σ = 188491433256. Its totient is φ = 26927347600.

The previous prime is 80782042801. The next prime is 80782042829. The reversal of 80782042812 is 21824028708.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×80782042812³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365918439 + ... + 3365918462.

It is an arithmetic number, because the mean of its divisors is an integer number (15707619438).

Almost surely, 2^80782042812 is an apocalyptic number.

It is an amenable number.

80782042812 is an abundant number, since it is smaller than the sum of its proper divisors (107709390444).

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

80782042812 is a wasteful number, since it uses less digits than its factorization.

80782042812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731836908 (or 6731836906 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The spelling of 80782042812 in words is "eighty billion, seven hundred eighty-two million, forty-two thousand, eight hundred twelve".