4521716233873 has 2 divisors, whose sum is σ = 4521716233874. Its totient is φ = 4521716233872.

The previous prime is 4521716233831. The next prime is 4521716233883. The reversal of 4521716233873 is 3783326171254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3296196384849 + 1225519849024 = 1815543^2 + 1107032^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521716233873 - 2³³ = 4513126299281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4521716233873.

It is not a weakly prime, because it can be changed into another prime (4521716233823) 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, 2260858116936 + 2260858116937.

It is an arithmetic number, because the mean of its divisors is an integer number (2260858116937).

Almost surely, 2^{4521716233873} is an apocalyptic number.

It is an amenable number.

4521716233873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521716233873 is an equidigital number, since it uses as much as digits as its factorization.

4521716233873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 52.

The spelling of 4521716233873 in words is "four trillion, five hundred twenty-one billion, seven hundred sixteen million, two hundred thirty-three thousand, eight hundred seventy-three".