4400642454813 has 24 divisors (see below), whose sum is σ = 6934553716896. Its totient is φ = 2666976021600.

The previous prime is 4400642454751. The next prime is 4400642454833. The reversal of 4400642454813 is 3184542460044.

It is a happy number.

4400642454813 is a `hidden beast` number, since 4 + 40 + 0 + 64 + 2 + 4 + 548 + 1 + 3 = 666.

It is not a de Polignac number, because 4400642454813 - 2⁶ = 4400642454749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400642454833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2737231 + ... + 4036547.

It is an arithmetic number, because the mean of its divisors is an integer number (288939738204).

Almost surely, 2^{4400642454813} is an apocalyptic number.

It is an amenable number.

4400642454813 is a deficient number, since it is larger than the sum of its proper divisors (2533911262083).

4400642454813 is a wasteful number, since it uses less digits than its factorization.

4400642454813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333545 (or 1333542 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 45.

The spelling of 4400642454813 in words is "four trillion, four hundred billion, six hundred forty-two million, four hundred fifty-four thousand, eight hundred thirteen".