73216786723 has 2 divisors, whose sum is σ = 73216786724. Its totient is φ = 73216786722.

The previous prime is 73216786711. The next prime is 73216786757. The reversal of 73216786723 is 32768761237.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32768761237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73216786723 - 2²¹ = 73214689571 is a prime.

It is not a weakly prime, because it can be changed into another prime (73216786523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36608393361 + 36608393362.

It is an arithmetic number, because the mean of its divisors is an integer number (36608393362).

Almost surely, 2^73216786723 is an apocalyptic number.

73216786723 is a deficient number, since it is larger than the sum of its proper divisors (1).

73216786723 is an equidigital number, since it uses as much as digits as its factorization.

73216786723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 52.

The spelling of 73216786723 in words is "seventy-three billion, two hundred sixteen million, seven hundred eighty-six thousand, seven hundred twenty-three".