2821831680 has 88 divisors (see below), whose sum is σ = 9025501392. Its totient is φ = 752484352.

The previous prime is 2821831667. The next prime is 2821831687. The reversal of 2821831680 is 861381282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821831687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76497 + ... + 107216.

Almost surely, 2^2821831680 is an apocalyptic number.

2821831680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2821831680 is an abundant number, since it is smaller than the sum of its proper divisors (6203669712).

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

2821831680 is a wasteful number, since it uses less digits than its factorization.

2821831680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183741 (or 183723 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 2821831680 is about 53120.9156547588. The cubic root of 2821831680 is about 1413.1134660549.

The spelling of 2821831680 in words is "two billion, eight hundred twenty-one million, eight hundred thirty-one thousand, six hundred eighty".