4994459647 has 2 divisors, whose sum is σ = 4994459648. Its totient is φ = 4994459646.

The previous prime is 4994459641. The next prime is 4994459669. The reversal of 4994459647 is 7469544994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4994459647 is a prime.

It is a super-2 number, since 2×4994459647² = 49889254331022729218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4994459641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497229823 + 2497229824.

It is an arithmetic number, because the mean of its divisors is an integer number (2497229824).

Almost surely, 2^4994459647 is an apocalyptic number.

4994459647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4994459647 is an equidigital number, since it uses as much as digits as its factorization.

4994459647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 61.

The square root of 4994459647 is about 70671.4910483711. The cubic root of 4994459647 is about 1709.3441218926.

The spelling of 4994459647 in words is "four billion, nine hundred ninety-four million, four hundred fifty-nine thousand, six hundred forty-seven".