8663147953 has 2 divisors, whose sum is σ = 8663147954. Its totient is φ = 8663147952.

The previous prime is 8663147947. The next prime is 8663148001. The reversal of 8663147953 is 3597413668.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5793188769 + 2869959184 = 76113^2 + 53572^2 .

It is a cyclic number.

It is not a de Polignac number, because 8663147953 - 2¹⁷ = 8663016881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8663147953.

It is not a weakly prime, because it can be changed into another prime (8663147153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4331573976 + 4331573977.

It is an arithmetic number, because the mean of its divisors is an integer number (4331573977).

Almost surely, 2^8663147953 is an apocalyptic number.

It is an amenable number.

8663147953 is a deficient number, since it is larger than the sum of its proper divisors (1).

8663147953 is an equidigital number, since it uses as much as digits as its factorization.

8663147953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 52.

The square root of 8663147953 is about 93076.0331825546. The cubic root of 8663147953 is about 2053.8020224063.

The spelling of 8663147953 in words is "eight billion, six hundred sixty-three million, one hundred forty-seven thousand, nine hundred fifty-three".