28052800073 has 2 divisors, whose sum is σ = 28052800074. Its totient is φ = 28052800072.

The previous prime is 28052800031. The next prime is 28052800079. The reversal of 28052800073 is 37000825082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16720558864 + 11332241209 = 129308^2 + 106453^2 .

It is a cyclic number.

It is not a de Polignac number, because 28052800073 - 2²⁴ = 28036022857 is a prime.

It is not a weakly prime, because it can be changed into another prime (28052800079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026400036 + 14026400037.

It is an arithmetic number, because the mean of its divisors is an integer number (14026400037).

Almost surely, 2^28052800073 is an apocalyptic number.

It is an amenable number.

28052800073 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052800073 is an equidigital number, since it uses as much as digits as its factorization.

28052800073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 28052800073 in words is "twenty-eight billion, fifty-two million, eight hundred thousand, seventy-three".