80852774772 has 144 divisors (see below), whose sum is σ = 240406246080. Its totient is φ = 20913177600.

The previous prime is 80852774749. The next prime is 80852774791. The reversal of 80852774772 is 27747725808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1532854 + ... + 1584722.

It is an arithmetic number, because the mean of its divisors is an integer number (1669487820).

Almost surely, 2^80852774772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80852774772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120203123040).

80852774772 is an abundant number, since it is smaller than the sum of its proper divisors (159553471308).

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

80852774772 is a wasteful number, since it uses less digits than its factorization.

80852774772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52142 (or 52133 counting only the distinct ones).

The product of its (nonzero) digits is 12293120, while the sum is 57.

The spelling of 80852774772 in words is "eighty billion, eight hundred fifty-two million, seven hundred seventy-four thousand, seven hundred seventy-two".