5644157760 has 280 divisors, whose sum is σ = 21259937160. Its totient is φ = 1416462336.

The previous prime is 5644157747. The next prime is 5644157807. The reversal of 5644157760 is 677514465.

5644157760 is a `hidden beast` number, since 564 + 4 + 15 + 7 + 76 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 756470016 + 4887687744 = 27504^2 + 69912^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 434236 + ... + 447044.

It is an arithmetic number, because the mean of its divisors is an integer number (75928347).

Almost surely, 2^5644157760 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 5644157760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10629968580).

5644157760 is an abundant number, since it is smaller than the sum of its proper divisors (15615779400).

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

5644157760 is a wasteful number, since it uses less digits than its factorization.

5644157760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855 (or 12836 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 5644157760 is about 75127.6098381946. The cubic root of 5644157760 is about 1780.4633898541.

The spelling of 5644157760 in words is "five billion, six hundred forty-four million, one hundred fifty-seven thousand, seven hundred sixty".