2821852208868 has 192 divisors, whose sum is σ = 8814333136896. Its totient is φ = 680117760000.

The previous prime is 2821852208843. The next prime is 2821852208873. The reversal of 2821852208868 is 8688022581282.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149833 + ... + 2380368.

It is an arithmetic number, because the mean of its divisors is an integer number (45907985088).

Almost surely, 2^{2821852208868} is an apocalyptic number.

2821852208868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2821852208868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4407166568448).

2821852208868 is an abundant number, since it is smaller than the sum of its proper divisors (5992480928028).

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

2821852208868 is a wasteful number, since it uses less digits than its factorization.

2821852208868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530314 (or 2530312 counting only the distinct ones).

The product of its (nonzero) digits is 15728640, while the sum is 60.

The spelling of 2821852208868 in words is "two trillion, eight hundred twenty-one billion, eight hundred fifty-two million, two hundred eight thousand, eight hundred sixty-eight".