8562749497 has 2 divisors, whose sum is σ = 8562749498. Its totient is φ = 8562749496.

The previous prime is 8562749491. The next prime is 8562749501. The reversal of 8562749497 is 7949472658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6138565801 + 2424183696 = 78349^2 + 49236^2 .

It is a cyclic number.

It is not a de Polignac number, because 8562749497 - 2¹⁹ = 8562225209 is a prime.

It is not a weakly prime, because it can be changed into another prime (8562749491) 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 as a sum of consecutive naturals, namely, 4281374748 + 4281374749.

It is an arithmetic number, because the mean of its divisors is an integer number (4281374749).

Almost surely, 2^8562749497 is an apocalyptic number.

It is an amenable number.

8562749497 is a deficient number, since it is larger than the sum of its proper divisors (1).

8562749497 is an equidigital number, since it uses as much as digits as its factorization.

8562749497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 61.

The square root of 8562749497 is about 92535.1257469292. The cubic root of 8562749497 is about 2045.8372396117.

The spelling of 8562749497 in words is "eight billion, five hundred sixty-two million, seven hundred forty-nine thousand, four hundred ninety-seven".