5561728956073 has 2 divisors, whose sum is σ = 5561728956074. Its totient is φ = 5561728956072.

The previous prime is 5561728956019. The next prime is 5561728956167. The reversal of 5561728956073 is 3706598271655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4446312042384 + 1115416913689 = 2108628^2 + 1056133^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561728956073 - 2¹³ = 5561728947881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5561728955996 and 5561728956014.

It is not a weakly prime, because it can be changed into another prime (5561728906073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780864478036 + 2780864478037.

It is an arithmetic number, because the mean of its divisors is an integer number (2780864478037).

Almost surely, 2^{5561728956073} is an apocalyptic number.

It is an amenable number.

5561728956073 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561728956073 is an equidigital number, since it uses as much as digits as its factorization.

5561728956073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256000, while the sum is 64.

The spelling of 5561728956073 in words is "five trillion, five hundred sixty-one billion, seven hundred twenty-eight million, nine hundred fifty-six thousand, seventy-three".