28744344833 has 2 divisors, whose sum is σ = 28744344834. Its totient is φ = 28744344832.

The previous prime is 28744344767. The next prime is 28744344841. The reversal of 28744344833 is 33844344782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17850830449 + 10893514384 = 133607^2 + 104372^2 .

It is a cyclic number.

It is not a de Polignac number, because 28744344833 - 2¹⁶ = 28744279297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28744341833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14372172416 + 14372172417.

It is an arithmetic number, because the mean of its divisors is an integer number (14372172417).

Almost surely, 2^28744344833 is an apocalyptic number.

It is an amenable number.

28744344833 is a deficient number, since it is larger than the sum of its proper divisors (1).

28744344833 is an equidigital number, since it uses as much as digits as its factorization.

28744344833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6193152, while the sum is 50.

The spelling of 28744344833 in words is "twenty-eight billion, seven hundred forty-four million, three hundred forty-four thousand, eight hundred thirty-three".