9528490649 has 2 divisors, whose sum is σ = 9528490650. Its totient is φ = 9528490648.

The previous prime is 9528490627. The next prime is 9528490691. The reversal of 9528490649 is 9460948259.

It is a happy number.

9528490649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8557545049 + 970945600 = 92507^2 + 31160^2 .

It is a cyclic number.

It is not a de Polignac number, because 9528490649 - 2¹⁶ = 9528425113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9528490594 and 9528490603.

It is not a weakly prime, because it can be changed into another prime (9528490949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4764245324 + 4764245325.

It is an arithmetic number, because the mean of its divisors is an integer number (4764245325).

Almost surely, 2^9528490649 is an apocalyptic number.

It is an amenable number.

9528490649 is a deficient number, since it is larger than the sum of its proper divisors (1).

9528490649 is an equidigital number, since it uses as much as digits as its factorization.

9528490649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The square root of 9528490649 is about 97613.9879781581. The cubic root of 9528490649 is about 2120.0268960187.

The spelling of 9528490649 in words is "nine billion, five hundred twenty-eight million, four hundred ninety thousand, six hundred forty-nine".