6855015244 has 192 divisors, whose sum is σ = 16824729600. Its totient is φ = 2362348800.

The previous prime is 6855015217. The next prime is 6855015253. The reversal of 6855015244 is 4425105586.

It is a junction number, because it is equal to n+sod(n) for n = 6855015197 and 6855015206.

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 63 ways as a sum of consecutive naturals, for example, 5260297 + ... + 5261599.

It is an arithmetic number, because the mean of its divisors is an integer number (87628800).

Almost surely, 2^6855015244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6855015244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8412364800).

6855015244 is an abundant number, since it is smaller than the sum of its proper divisors (9969714356).

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

6855015244 is a wasteful number, since it uses less digits than its factorization.

6855015244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 6855015244 is about 82795.0194395774. The cubic root of 6855015244 is about 1899.6319918836.

The spelling of 6855015244 in words is "six billion, eight hundred fifty-five million, fifteen thousand, two hundred forty-four".