4997511165509 has 2 divisors, whose sum is σ = 4997511165510. Its totient is φ = 4997511165508.

The previous prime is 4997511165503. The next prime is 4997511165511. The reversal of 4997511165509 is 9055611157994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4894404028900 + 103107136609 = 2212330^2 + 321103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4997511165509 is a prime.

Together with 4997511165511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4997511165503) 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, 2498755582754 + 2498755582755.

It is an arithmetic number, because the mean of its divisors is an integer number (2498755582755).

Almost surely, 2^{4997511165509} is an apocalyptic number.

It is an amenable number.

4997511165509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4997511165509 is an equidigital number, since it uses as much as digits as its factorization.

4997511165509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309000, while the sum is 62.

The spelling of 4997511165509 in words is "four trillion, nine hundred ninety-seven billion, five hundred eleven million, one hundred sixty-five thousand, five hundred nine".