2728203273641 has 2 divisors, whose sum is σ = 2728203273642. Its totient is φ = 2728203273640.

The previous prime is 2728203273571. The next prime is 2728203273671. The reversal of 2728203273641 is 1463723028272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2658350898025 + 69852375616 = 1630445^2 + 264296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2728203273641 - 2¹⁰ = 2728203272617 is a prime.

It is not a weakly prime, because it can be changed into another prime (2728203273671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364101636820 + 1364101636821.

It is an arithmetic number, because the mean of its divisors is an integer number (1364101636821).

Almost surely, 2^{2728203273641} is an apocalyptic number.

It is an amenable number.

2728203273641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728203273641 is an equidigital number, since it uses as much as digits as its factorization.

2728203273641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 2728203273641 in words is "two trillion, seven hundred twenty-eight billion, two hundred three million, two hundred seventy-three thousand, six hundred forty-one".