5717281644 has 60 divisors (see below), whose sum is σ = 15007816824. Its totient is φ = 1905734304.

The previous prime is 5717281637. The next prime is 5717281651. The reversal of 5717281644 is 4461827175.

5717281644 is a `hidden beast` number, since 571 + 7 + 28 + 16 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (5717281637) and next prime (5717281651).

It is a self number, because there is not a number n which added to its sum of digits gives 5717281644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42424 + ... + 115040.

Almost surely, 2^5717281644 is an apocalyptic number.

5717281644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5717281644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7503908412).

5717281644 is an abundant number, since it is smaller than the sum of its proper divisors (9290535180).

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

5717281644 is an frugal number, since it uses more digits than its factorization.

5717281644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72648 (or 72622 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 5717281644 is about 75612.7082176006. The cubic root of 5717281644 is about 1788.1194573582.

The spelling of 5717281644 in words is "five billion, seven hundred seventeen million, two hundred eighty-one thousand, six hundred forty-four".