6856834281 has 16 divisors (see below), whose sum is σ = 10560259008. Its totient is φ = 3911206400.

The previous prime is 6856834279. The next prime is 6856834289. The reversal of 6856834281 is 1824386586.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6856834281 - 2¹ = 6856834279 is a prime.

It is a super-2 number, since 2×6856834281² = 94032352714193573922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (6856834289) 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 15 ways as a sum of consecutive naturals, for example, 6110700 + ... + 6111821.

It is an arithmetic number, because the mean of its divisors is an integer number (660016188).

Almost surely, 2^6856834281 is an apocalyptic number.

It is an amenable number.

6856834281 is a deficient number, since it is larger than the sum of its proper divisors (3703424727).

6856834281 is a wasteful number, since it uses less digits than its factorization.

6856834281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222552.

The product of its digits is 2211840, while the sum is 51.

The square root of 6856834281 is about 82806.0038946452. The cubic root of 6856834281 is about 1899.8000048956.

The spelling of 6856834281 in words is "six billion, eight hundred fifty-six million, eight hundred thirty-four thousand, two hundred eighty-one".