6845809464 has 96 divisors (see below), whose sum is σ = 20219908800. Its totient is φ = 2079717120.

The previous prime is 6845809463. The next prime is 6845809499. The reversal of 6845809464 is 4649085486.

6845809464 is a `hidden beast` number, since 68 + 45 + 80 + 9 + 464 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6845809464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845809463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27654 + ... + 120234.

It is an arithmetic number, because the mean of its divisors is an integer number (210624050).

Almost surely, 2^6845809464 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 6845809464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10109954400).

6845809464 is an abundant number, since it is smaller than the sum of its proper divisors (13374099336).

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

6845809464 is a wasteful number, since it uses less digits than its factorization.

6845809464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92685 (or 92678 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The square root of 6845809464 is about 82739.4069594410. The cubic root of 6845809464 is about 1898.7812557143.

The spelling of 6845809464 in words is "six billion, eight hundred forty-five million, eight hundred nine thousand, four hundred sixty-four".