5644345770 has 576 divisors, whose sum is σ = 19360373760. Its totient is φ = 1132185600.

The previous prime is 5644345769. The next prime is 5644345783. The reversal of 5644345770 is 775434465.

5644345770 is a `hidden beast` number, since 5 + 6 + 44 + 34 + 577 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 106497064 + ... + 106497116.

It is an arithmetic number, because the mean of its divisors is an integer number (33611760).

Almost surely, 2^5644345770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5644345770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9680186880).

5644345770 is an abundant number, since it is smaller than the sum of its proper divisors (13716027990).

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

5644345770 is a wasteful number, since it uses less digits than its factorization.

5644345770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The square root of 5644345770 is about 75128.8610987815. The cubic root of 5644345770 is about 1780.4831590396.

The spelling of 5644345770 in words is "five billion, six hundred forty-four million, three hundred forty-five thousand, seven hundred seventy".