40803775636 has 12 divisors (see below), whose sum is σ = 76899423412. Its totient is φ = 18832511808.

The previous prime is 40803775619. The next prime is 40803775697. The reversal of 40803775636 is 63657730804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21212174736 + 19591600900 = 145644^2 + 139970^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40803775636.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 392343945 + ... + 392344048.

Almost surely, 2^40803775636 is an apocalyptic number.

It is an amenable number.

40803775636 is a deficient number, since it is larger than the sum of its proper divisors (36095647776).

40803775636 is a wasteful number, since it uses less digits than its factorization.

40803775636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784688010 (or 784688008 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 40803775636 in words is "forty billion, eight hundred three million, seven hundred seventy-five thousand, six hundred thirty-six".