5644131277 has 4 divisors (see below), whose sum is σ = 5652937116. Its totient is φ = 5635325440.

The previous prime is 5644131271. The next prime is 5644131301. The reversal of 5644131277 is 7721314465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2618471241 + 3025660036 = 51171^2 + 55006^2 .

It is a cyclic number.

It is not a de Polignac number, because 5644131277 - 2⁷ = 5644131149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644131271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4401958 + ... + 4403239.

It is an arithmetic number, because the mean of its divisors is an integer number (1413234279).

Almost surely, 2^5644131277 is an apocalyptic number.

It is an amenable number.

5644131277 is a deficient number, since it is larger than the sum of its proper divisors (8805839).

5644131277 is an equidigital number, since it uses as much as digits as its factorization.

5644131277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8805838.

The product of its digits is 141120, while the sum is 40.

The square root of 5644131277 is about 75127.4335845435. The cubic root of 5644131277 is about 1780.4606051407.

The spelling of 5644131277 in words is "five billion, six hundred forty-four million, one hundred thirty-one thousand, two hundred seventy-seven".