8562749441 has 2 divisors, whose sum is σ = 8562749442. Its totient is φ = 8562749440.

The previous prime is 8562749411. The next prime is 8562749443. The reversal of 8562749441 is 1449472658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8488858225 + 73891216 = 92135^2 + 8596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8562749441 is a prime.

Together with 8562749443, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8562749441.

It is not a weakly prime, because it can be changed into another prime (8562749443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4281374720 + 4281374721.

It is an arithmetic number, because the mean of its divisors is an integer number (4281374721).

Almost surely, 2^8562749441 is an apocalyptic number.

It is an amenable number.

8562749441 is a deficient number, since it is larger than the sum of its proper divisors (1).

8562749441 is an equidigital number, since it uses as much as digits as its factorization.

8562749441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The square root of 8562749441 is about 92535.1254443414. The cubic root of 8562749441 is about 2045.8372351518.

The spelling of 8562749441 in words is "eight billion, five hundred sixty-two million, seven hundred forty-nine thousand, four hundred forty-one".