6845288580 has 144 divisors (see below), whose sum is σ = 22389245424. Its totient is φ = 1682887680.

The previous prime is 6845288533. The next prime is 6845288581. The reversal of 6845288580 is 858825486.

It is a happy number.

6845288580 is a `hidden beast` number, since 6 + 8 + 4 + 52 + 8 + 8 + 580 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2359296 + 6842929284 = 1536^2 + 82722^2 .

It is not an unprimeable number, because it can be changed into a prime (6845288581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2762302 + ... + 2764778.

It is an arithmetic number, because the mean of its divisors is an integer number (155480871).

Almost surely, 2^6845288580 is an apocalyptic number.

6845288580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6845288580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11194622712).

6845288580 is an abundant number, since it is smaller than the sum of its proper divisors (15543956844).

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

6845288580 is a wasteful number, since it uses less digits than its factorization.

6845288580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686 (or 3681 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 54.

The square root of 6845288580 is about 82736.2591612650. The cubic root of 6845288580 is about 1898.7330963322.

The spelling of 6845288580 in words is "six billion, eight hundred forty-five million, two hundred eighty-eight thousand, five hundred eighty".