6845261568 has 72 divisors (see below), whose sum is σ = 18379836048. Its totient is φ = 2261532672.

The previous prime is 6845261557. The next prime is 6845261623. The reversal of 6845261568 is 8651625486.

It is a self number, because there is not a number n which added to its sum of digits gives 6845261568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47346 + ... + 126222.

Almost surely, 2^6845261568 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 6845261568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9189918024).

6845261568 is an abundant number, since it is smaller than the sum of its proper divisors (11534574480).

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

6845261568 is a wasteful number, since it uses less digits than its factorization.

6845261568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79009 (or 78995 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 6845261568 is about 82736.0959194957. The cubic root of 6845261568 is about 1898.7305988165.

The spelling of 6845261568 in words is "six billion, eight hundred forty-five million, two hundred sixty-one thousand, five hundred sixty-eight".