8647521353 has 2 divisors, whose sum is σ = 8647521354. Its totient is φ = 8647521352.

The previous prime is 8647521317. The next prime is 8647521391. The reversal of 8647521353 is 3531257468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8403755584 + 243765769 = 91672^2 + 15613^2 .

It is a cyclic number.

It is not a de Polignac number, because 8647521353 - 2⁸ = 8647521097 is a prime.

It is not a weakly prime, because it can be changed into another prime (8607521353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4323760676 + 4323760677.

It is an arithmetic number, because the mean of its divisors is an integer number (4323760677).

Almost surely, 2^8647521353 is an apocalyptic number.

It is an amenable number.

8647521353 is a deficient number, since it is larger than the sum of its proper divisors (1).

8647521353 is an equidigital number, since it uses as much as digits as its factorization.

8647521353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 44.

The square root of 8647521353 is about 92992.0499451432. The cubic root of 8647521353 is about 2052.5663953859.

The spelling of 8647521353 in words is "eight billion, six hundred forty-seven million, five hundred twenty-one thousand, three hundred fifty-three".