2808744680872 has 64 divisors (see below), whose sum is σ = 5686830954000. Its totient is φ = 1292841990144.

The previous prime is 2808744680851. The next prime is 2808744680941. The reversal of 2808744680872 is 2780864478082.

It can be written as a sum of positive squares in 8 ways, for example, as 506223712036 + 2302520968836 = 711494^2 + 1517406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257464954 + ... + 257475862.

Almost surely, 2^{2808744680872} is an apocalyptic number.

It is an amenable number.

2808744680872 is an abundant number, since it is smaller than the sum of its proper divisors (2878086273128).

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

2808744680872 is a wasteful number, since it uses less digits than its factorization.

2808744680872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17390 (or 17386 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 64.

The spelling of 2808744680872 in words is "two trillion, eight hundred eight billion, seven hundred forty-four million, six hundred eighty thousand, eight hundred seventy-two".