5811572749 has 2 divisors, whose sum is σ = 5811572750. Its totient is φ = 5811572748.

The previous prime is 5811572713. The next prime is 5811572803. The reversal of 5811572749 is 9472751185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4166702500 + 1644870249 = 64550^2 + 40557^2 .

It is a cyclic number.

It is not a de Polignac number, because 5811572749 - 2¹⁹ = 5811048461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5811572549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905786374 + 2905786375.

It is an arithmetic number, because the mean of its divisors is an integer number (2905786375).

Almost surely, 2^5811572749 is an apocalyptic number.

It is an amenable number.

5811572749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5811572749 is an equidigital number, since it uses as much as digits as its factorization.

5811572749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 49.

The square root of 5811572749 is about 76233.6720157176. The cubic root of 5811572749 is about 1797.8959725189.

The spelling of 5811572749 in words is "five billion, eight hundred eleven million, five hundred seventy-two thousand, seven hundred forty-nine".