1723777316473 has 2 divisors, whose sum is σ = 1723777316474. Its totient is φ = 1723777316472.

The previous prime is 1723777316447. The next prime is 1723777316507. The reversal of 1723777316473 is 3746137773271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1717861091584 + 5916224889 = 1310672^2 + 76917^2 .

It is an emirp because it is prime and its reverse (3746137773271) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1723777316473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1723777316413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861888658236 + 861888658237.

It is an arithmetic number, because the mean of its divisors is an integer number (861888658237).

Almost surely, 2^{1723777316473} is an apocalyptic number.

It is an amenable number.

1723777316473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1723777316473 is an equidigital number, since it uses as much as digits as its factorization.

1723777316473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21781872, while the sum is 58.

The spelling of 1723777316473 in words is "one trillion, seven hundred twenty-three billion, seven hundred seventy-seven million, three hundred sixteen thousand, four hundred seventy-three".