5645736375473 has 2 divisors, whose sum is σ = 5645736375474. Its totient is φ = 5645736375472.

The previous prime is 5645736375463. The next prime is 5645736375479. The reversal of 5645736375473 is 3745736375465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3623970890929 + 2021765484544 = 1903673^2 + 1421888^2 .

It is a cyclic number.

It is not a de Polignac number, because 5645736375473 - 2³⁴ = 5628556506289 is a prime.

It is not a weakly prime, because it can be changed into another prime (5645736375479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822868187736 + 2822868187737.

It is an arithmetic number, because the mean of its divisors is an integer number (2822868187737).

Almost surely, 2^{5645736375473} is an apocalyptic number.

It is an amenable number.

5645736375473 is a deficient number, since it is larger than the sum of its proper divisors (1).

5645736375473 is an equidigital number, since it uses as much as digits as its factorization.

5645736375473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792000, while the sum is 65.

The spelling of 5645736375473 in words is "five trillion, six hundred forty-five billion, seven hundred thirty-six million, three hundred seventy-five thousand, four hundred seventy-three".