9494039563 has 2 divisors, whose sum is σ = 9494039564. Its totient is φ = 9494039562.

The previous prime is 9494039549. The next prime is 9494039579. The reversal of 9494039563 is 3659304949.

It is a weak prime.

It is an emirp because it is prime and its reverse (3659304949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9494039563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9494039563.

It is not a weakly prime, because it can be changed into another prime (9494039363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4747019781 + 4747019782.

It is an arithmetic number, because the mean of its divisors is an integer number (4747019782).

Almost surely, 2^9494039563 is an apocalyptic number.

9494039563 is a deficient number, since it is larger than the sum of its proper divisors (1).

9494039563 is an equidigital number, since it uses as much as digits as its factorization.

9494039563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 52.

The square root of 9494039563 is about 97437.3622539116. The cubic root of 9494039563 is about 2117.4687633267.

The spelling of 9494039563 in words is "nine billion, four hundred ninety-four million, thirty-nine thousand, five hundred sixty-three".