8540785844 has 12 divisors (see below), whose sum is σ = 14947220484. Its totient is φ = 4270151424.

The previous prime is 8540785843. The next prime is 8540785849. The reversal of 8540785844 is 4485870458.

It can be written as a sum of positive squares in 2 ways, for example, as 1093095844 + 7447690000 = 33062^2 + 86300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540785843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36452 + ... + 135684.

It is an arithmetic number, because the mean of its divisors is an integer number (1245601707).

Almost surely, 2^8540785844 is an apocalyptic number.

It is an amenable number.

8540785844 is a deficient number, since it is larger than the sum of its proper divisors (6406434640).

8540785844 is a wasteful number, since it uses less digits than its factorization.

8540785844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120754 (or 120752 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 53.

The square root of 8540785844 is about 92416.3721642437. The cubic root of 8540785844 is about 2044.0865350802.

The spelling of 8540785844 in words is "eight billion, five hundred forty million, seven hundred eighty-five thousand, eight hundred forty-four".