5643994034406 has 128 divisors (see below), whose sum is σ = 14023474375680. Its totient is φ = 1474551042048.

The previous prime is 5643994034401. The next prime is 5643994034477. The reversal of 5643994034406 is 6044304993465.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643994034401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118004365 + ... + 118052183.

It is an arithmetic number, because the mean of its divisors is an integer number (109558393560).

Almost surely, 2^{5643994034406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643994034406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7011737187840).

5643994034406 is an abundant number, since it is smaller than the sum of its proper divisors (8379480341274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5643994034406 is a wasteful number, since it uses less digits than its factorization.

5643994034406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49870.

The product of its (nonzero) digits is 33592320, while the sum is 57.

The spelling of 5643994034406 in words is "five trillion, six hundred forty-three billion, nine hundred ninety-four million, thirty-four thousand, four hundred six".