4009493911 has 16 divisors (see below), whose sum is σ = 4290633504. Its totient is φ = 3733510144.

The previous prime is 4009493897. The next prime is 4009493921. The reversal of 4009493911 is 1193949004.

It is a cyclic number.

It is not a de Polignac number, because 4009493911 - 2⁵ = 4009493879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009493921) 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 15 ways as a sum of consecutive naturals, for example, 1298976 + ... + 1302058.

It is an arithmetic number, because the mean of its divisors is an integer number (268164594).

Almost surely, 2^4009493911 is an apocalyptic number.

4009493911 is a deficient number, since it is larger than the sum of its proper divisors (281139593).

4009493911 is a wasteful number, since it uses less digits than its factorization.

4009493911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 4009493911 is about 63320.5646768883. The cubic root of 4009493911 is about 1588.6559466954.

The spelling of 4009493911 in words is "four billion, nine million, four hundred ninety-three thousand, nine hundred eleven".