5643969745440 has 768 divisors, whose sum is σ = 20670765373440. Its totient is φ = 1281983447040.

The previous prime is 5643969745433. The next prime is 5643969745471. The reversal of 5643969745440 is 445479693465.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2922821275 + ... + 2922823205.

It is an arithmetic number, because the mean of its divisors is an integer number (26915059080).

Almost surely, 2^{5643969745440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643969745440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10335382686720).

5643969745440 is an abundant number, since it is smaller than the sum of its proper divisors (15026795628000).

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

5643969745440 is a wasteful number, since it uses less digits than its factorization.

5643969745440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 66.

The spelling of 5643969745440 in words is "five trillion, six hundred forty-three billion, nine hundred sixty-nine million, seven hundred forty-five thousand, four hundred forty".