2808821542220 has 24 divisors (see below), whose sum is σ = 5898567739344. Its totient is φ = 1123520521536.

The previous prime is 2808821542169. The next prime is 2808821542223. The reversal of 2808821542220 is 222451288082.

It is not an unprimeable number, because it can be changed into a prime (2808821542223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2897594 + ... + 3743486.

It is an arithmetic number, because the mean of its divisors is an integer number (245773655806).

Almost surely, 2^{2808821542220} is an apocalyptic number.

2808821542220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2808821542220 is an abundant number, since it is smaller than the sum of its proper divisors (3089746197124).

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

2808821542220 is a wasteful number, since it uses less digits than its factorization.

2808821542220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011929 (or 1011927 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 44.

The spelling of 2808821542220 in words is "two trillion, eight hundred eight billion, eight hundred twenty-one million, five hundred forty-two thousand, two hundred twenty".