2821873671 has 6 divisors (see below), whose sum is σ = 4076039760. Its totient is φ = 1881249108.

The previous prime is 2821873669. The next prime is 2821873679. The reversal of 2821873671 is 1763781282.

2821873671 is a `hidden beast` number, since 282 + 1 + 8 + 7 + 367 + 1 = 666.

It is not a de Polignac number, because 2821873671 - 2¹ = 2821873669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821873679) 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 5 ways as a sum of consecutive naturals, for example, 156770751 + ... + 156770768.

It is an arithmetic number, because the mean of its divisors is an integer number (679339960).

Almost surely, 2^2821873671 is an apocalyptic number.

2821873671 is a deficient number, since it is larger than the sum of its proper divisors (1254166089).

2821873671 is a wasteful number, since it uses less digits than its factorization.

2821873671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313541525 (or 313541522 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 2821873671 is about 53121.3108930870. The cubic root of 2821873671 is about 1413.1204754209.

The spelling of 2821873671 in words is "two billion, eight hundred twenty-one million, eight hundred seventy-three thousand, six hundred seventy-one".