12820512848 has 80 divisors (see below), whose sum is σ = 29297249856. Its totient is φ = 5358059520.

The previous prime is 12820512797. The next prime is 12820512851. The reversal of 12820512848 is 84821502821.

It is a super-2 number, since 2×12820512848² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577115 + ... + 598917.

Almost surely, 2^12820512848 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 12820512848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14648624928).

12820512848 is an abundant number, since it is smaller than the sum of its proper divisors (16476737008).

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

12820512848 is a wasteful number, since it uses less digits than its factorization.

12820512848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22092 (or 22086 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The spelling of 12820512848 in words is "twelve billion, eight hundred twenty million, five hundred twelve thousand, eight hundred forty-eight".