4518619397779 has 2 divisors, whose sum is σ = 4518619397780. Its totient is φ = 4518619397778.

The previous prime is 4518619397777. The next prime is 4518619397879. The reversal of 4518619397779 is 9777939168154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4518619397779 - 2¹ = 4518619397777 is a prime.

Together with 4518619397777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4518619397777) 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, 2259309698889 + 2259309698890.

It is an arithmetic number, because the mean of its divisors is an integer number (2259309698890).

Almost surely, 2^{4518619397779} is an apocalyptic number.

4518619397779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4518619397779 is an equidigital number, since it uses as much as digits as its factorization.

4518619397779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720135360, while the sum is 76.

The spelling of 4518619397779 in words is "four trillion, five hundred eighteen billion, six hundred nineteen million, three hundred ninety-seven thousand, seven hundred seventy-nine".