4004564523421 has 16 divisors (see below), whose sum is σ = 4994892862848. Its totient is φ = 3119071737600.

The previous prime is 4004564523371. The next prime is 4004564523433. The reversal of 4004564523421 is 1243254654004.

4004564523421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4004564523421 - 2¹⁵ = 4004564490653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004564523721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11224480 + ... + 11575753.

It is an arithmetic number, because the mean of its divisors is an integer number (312180803928).

Almost surely, 2^{4004564523421} is an apocalyptic number.

It is an amenable number.

4004564523421 is a deficient number, since it is larger than the sum of its proper divisors (990328339427).

4004564523421 is a wasteful number, since it uses less digits than its factorization.

4004564523421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22802532.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 4004564523421 in words is "four trillion, four billion, five hundred sixty-four million, five hundred twenty-three thousand, four hundred twenty-one".