6851222244 has 48 divisors (see below), whose sum is σ = 18534714240. Its totient is φ = 2184446880.

The previous prime is 6851222233. The next prime is 6851222269. The reversal of 6851222244 is 4422221586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6851222199 and 6851222208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376587 + ... + 1381554.

It is an arithmetic number, because the mean of its divisors is an integer number (386139880).

Almost surely, 2^6851222244 is an apocalyptic number.

It is an amenable number.

6851222244 is an abundant number, since it is smaller than the sum of its proper divisors (11683491996).

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

6851222244 is a wasteful number, since it uses less digits than its factorization.

6851222244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758177 (or 2758169 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 6851222244 is about 82772.1103029275. The cubic root of 6851222244 is about 1899.2815606913.

The spelling of 6851222244 in words is "six billion, eight hundred fifty-one million, two hundred twenty-two thousand, two hundred forty-four".