43628461573 has 2 divisors, whose sum is σ = 43628461574. Its totient is φ = 43628461572.

The previous prime is 43628461567. The next prime is 43628461589. The reversal of 43628461573 is 37516482634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42548550529 + 1079911044 = 206273^2 + 32862^2 .

It is a cyclic number.

It is not a de Polignac number, because 43628461573 - 2¹³ = 43628453381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43628461273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21814230786 + 21814230787.

It is an arithmetic number, because the mean of its divisors is an integer number (21814230787).

Almost surely, 2^43628461573 is an apocalyptic number.

It is an amenable number.

43628461573 is a deficient number, since it is larger than the sum of its proper divisors (1).

43628461573 is an equidigital number, since it uses as much as digits as its factorization.

43628461573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 49.

The spelling of 43628461573 in words is "forty-three billion, six hundred twenty-eight million, four hundred sixty-one thousand, five hundred seventy-three".