2688304855 has 4 divisors (see below), whose sum is σ = 3225965832. Its totient is φ = 2150643880.

The previous prime is 2688304811. The next prime is 2688304859. The reversal of 2688304855 is 5584038862.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2688304855 - 2¹¹ = 2688302807 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2688304799 and 2688304808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688304859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268830481 + ... + 268830490.

It is an arithmetic number, because the mean of its divisors is an integer number (806491458).

Almost surely, 2^2688304855 is an apocalyptic number.

2688304855 is a deficient number, since it is larger than the sum of its proper divisors (537660977).

2688304855 is an equidigital number, since it uses as much as digits as its factorization.

2688304855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537660976.

The product of its (nonzero) digits is 1843200, while the sum is 49.

The square root of 2688304855 is about 51848.8655131431. The cubic root of 2688304855 is about 1390.4632196631.

The spelling of 2688304855 in words is "two billion, six hundred eighty-eight million, three hundred four thousand, eight hundred fifty-five".