9498661663 has 2 divisors, whose sum is σ = 9498661664. Its totient is φ = 9498661662.

The previous prime is 9498661649. The next prime is 9498661709. The reversal of 9498661663 is 3661668949.

It is a weak prime.

It is an emirp because it is prime and its reverse (3661668949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9498661663 - 2²⁵ = 9465107231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9498661598 and 9498661607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9498661763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4749330831 + 4749330832.

It is an arithmetic number, because the mean of its divisors is an integer number (4749330832).

Almost surely, 2^9498661663 is an apocalyptic number.

9498661663 is a deficient number, since it is larger than the sum of its proper divisors (1).

9498661663 is an equidigital number, since it uses as much as digits as its factorization.

9498661663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 58.

The square root of 9498661663 is about 97461.0776823240. The cubic root of 9498661663 is about 2117.8123320282.

The spelling of 9498661663 in words is "nine billion, four hundred ninety-eight million, six hundred sixty-one thousand, six hundred sixty-three".