40485832909 has 16 divisors (see below), whose sum is σ = 42945158080. Its totient is φ = 38060098560.

The previous prime is 40485832883. The next prime is 40485832927. The reversal of 40485832909 is 90923858404.

It is a cyclic number.

It is not a de Polignac number, because 40485832909 - 2⁷ = 40485832781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40485832999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2037229 + ... + 2057005.

It is an arithmetic number, because the mean of its divisors is an integer number (2684072380).

Almost surely, 2^40485832909 is an apocalyptic number.

It is an amenable number.

40485832909 is a deficient number, since it is larger than the sum of its proper divisors (2459325171).

40485832909 is a wasteful number, since it uses less digits than its factorization.

40485832909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20620.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 40485832909 in words is "forty billion, four hundred eighty-five million, eight hundred thirty-two thousand, nine hundred nine".