2808872136 has 48 divisors (see below), whose sum is σ = 8694129600. Its totient is φ = 802534752.

The previous prime is 2808872123. The next prime is 2808872137. The reversal of 2808872136 is 6312788082.

It is a junction number, because it is equal to n+sod(n) for n = 2808872091 and 2808872100.

It is not an unprimeable number, because it can be changed into a prime (2808872137) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2786076 + ... + 2787083.

It is an arithmetic number, because the mean of its divisors is an integer number (181127700).

Almost surely, 2^2808872136 is an apocalyptic number.

It is an amenable number.

2808872136 is an abundant number, since it is smaller than the sum of its proper divisors (5885257464).

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

2808872136 is a wasteful number, since it uses less digits than its factorization.

2808872136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5573178 (or 5573171 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2808872136 is about 52998.7937221216. The cubic root of 2808872136 is about 1410.9468576010.

The spelling of 2808872136 in words is "two billion, eight hundred eight million, eight hundred seventy-two thousand, one hundred thirty-six".