6851363436 has 72 divisors (see below), whose sum is σ = 17642111760. Its totient is φ = 2241275904.

The previous prime is 6851363423. The next prime is 6851363437. The reversal of 6851363436 is 6343631586.

6851363436 is a `hidden beast` number, since 6 + 8 + 5 + 1 + 3 + 634 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6851363391 and 6851363400.

It is not an unprimeable number, because it can be changed into a prime (6851363437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1427056 + ... + 1431848.

It is an arithmetic number, because the mean of its divisors is an integer number (245029330).

Almost surely, 2^6851363436 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 6851363436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8821055880).

6851363436 is an abundant number, since it is smaller than the sum of its proper divisors (10790748324).

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

6851363436 is a wasteful number, since it uses less digits than its factorization.

6851363436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535 (or 5530 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 6851363436 is about 82772.9631945118. The cubic root of 6851363436 is about 1899.2946075858.

The spelling of 6851363436 in words is "six billion, eight hundred fifty-one million, three hundred sixty-three thousand, four hundred thirty-six".