40520844916 has 12 divisors (see below), whose sum is σ = 70926936388. Its totient is φ = 20256005952.

The previous prime is 40520844913. The next prime is 40520844943. The reversal of 40520844916 is 61944802504.

It can be written as a sum of positive squares in 2 ways, for example, as 13806250000 + 26714594916 = 117500^2 + 163446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40520844913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083441 + ... + 1120216.

Almost surely, 2^40520844916 is an apocalyptic number.

It is an amenable number.

40520844916 is a deficient number, since it is larger than the sum of its proper divisors (30406091472).

40520844916 is a wasteful number, since it uses less digits than its factorization.

40520844916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208258 (or 2208256 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 40520844916 in words is "forty billion, five hundred twenty million, eight hundred forty-four thousand, nine hundred sixteen".