2688223641 has 16 divisors (see below), whose sum is σ = 3682685184. Its totient is φ = 1742995584.

The previous prime is 2688223633. The next prime is 2688223687. The reversal of 2688223641 is 1463228862.

It is not a de Polignac number, because 2688223641 - 2³ = 2688223633 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2688223593 and 2688223602.

It is not an unprimeable number, because it can be changed into a prime (2688223631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465216 + ... + 470958.

It is an arithmetic number, because the mean of its divisors is an integer number (230167824).

Almost surely, 2^2688223641 is an apocalyptic number.

It is an amenable number.

2688223641 is a deficient number, since it is larger than the sum of its proper divisors (994461543).

2688223641 is a wasteful number, since it uses less digits than its factorization.

2688223641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000.

The product of its digits is 221184, while the sum is 42.

The square root of 2688223641 is about 51848.0823271218. The cubic root of 2688223641 is about 1390.4492175040.

The spelling of 2688223641 in words is "two billion, six hundred eighty-eight million, two hundred twenty-three thousand, six hundred forty-one".