2845840680 has 48 divisors (see below), whose sum is σ = 9248983380. Its totient is φ = 758890752.

The previous prime is 2845840667. The next prime is 2845840733. The reversal of 2845840680 is 860485482.

2845840680 is a `hidden beast` number, since 2 + 8 + 4 + 584 + 0 + 68 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2843235684 + 2604996 = 53322^2 + 1614^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3952197 + ... + 3952916.

Almost surely, 2^2845840680 is an apocalyptic number.

2845840680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2845840680 is an abundant number, since it is smaller than the sum of its proper divisors (6403142700).

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

2845840680 is a wasteful number, since it uses less digits than its factorization.

2845840680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905130 (or 7905123 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 2845840680 is about 53346.4214357439. The cubic root of 2845840680 is about 1417.1098858334.

The spelling of 2845840680 in words is "two billion, eight hundred forty-five million, eight hundred forty thousand, six hundred eighty".