2871921757206 has 16 divisors (see below), whose sum is σ = 5744424582144. Its totient is φ = 957210407784.

The previous prime is 2871921757193. The next prime is 2871921757217. The reversal of 2871921757206 is 6027571291782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24146890 + ... + 24265533.

It is an arithmetic number, because the mean of its divisors is an integer number (359026536384).

Almost surely, 2^{2871921757206} is an apocalyptic number.

2871921757206 is an abundant number, since it is smaller than the sum of its proper divisors (2872502824938).

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

2871921757206 is a wasteful number, since it uses less digits than its factorization.

2871921757206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48422315.

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 2871921757206 in words is "two trillion, eight hundred seventy-one billion, nine hundred twenty-one million, seven hundred fifty-seven thousand, two hundred six".