5643753856 has 128 divisors (see below), whose sum is σ = 12841032960. Its totient is φ = 2451824640.

The previous prime is 5643753847. The next prime is 5643753883. The reversal of 5643753856 is 6583573465.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×5643753856² = 63703915174229737472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1907130 + ... + 1910086.

It is an arithmetic number, because the mean of its divisors is an integer number (100320570).

Almost surely, 2^5643753856 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 5643753856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6420516480).

5643753856 is an abundant number, since it is smaller than the sum of its proper divisors (7197279104).

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

5643753856 is a wasteful number, since it uses less digits than its factorization.

5643753856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3040 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 52.

The square root of 5643753856 is about 75124.9216705082. The cubic root of 5643753856 is about 1780.4209180056.

The spelling of 5643753856 in words is "five billion, six hundred forty-three million, seven hundred fifty-three thousand, eight hundred fifty-six".