845644914 has 64 divisors (see below), whose sum is σ = 1916006400. Its totient is φ = 276413904.

The previous prime is 845644909. The next prime is 845644973. The reversal of 845644914 is 419446548.

845644914 is a `hidden beast` number, since 84 + 564 + 4 + 9 + 1 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 845644914.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711829 + ... + 713015.

It is an arithmetic number, because the mean of its divisors is an integer number (29937600).

Almost surely, 2^845644914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845644914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958003200).

845644914 is an abundant number, since it is smaller than the sum of its proper divisors (1070361486).

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

845644914 is a wasteful number, since it uses less digits than its factorization.

845644914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1438 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 845644914 is about 29079.9744497824. The cubic root of 845644914 is about 945.6476487559.

The spelling of 845644914 in words is "eight hundred forty-five million, six hundred forty-four thousand, nine hundred fourteen".