4981616609 has 2 divisors, whose sum is σ = 4981616610. Its totient is φ = 4981616608.

The previous prime is 4981616603. The next prime is 4981616611. The reversal of 4981616609 is 9066161894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3694816225 + 1286800384 = 60785^2 + 35872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4981616609 is a prime.

Together with 4981616611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4981616603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490808304 + 2490808305.

It is an arithmetic number, because the mean of its divisors is an integer number (2490808305).

Almost surely, 2^4981616609 is an apocalyptic number.

It is an amenable number.

4981616609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4981616609 is an equidigital number, since it uses as much as digits as its factorization.

4981616609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 4981616609 is about 70580.5682110877. The cubic root of 4981616609 is about 1707.8776959457.

The spelling of 4981616609 in words is "four billion, nine hundred eighty-one million, six hundred sixteen thousand, six hundred nine".