28320612071 has 2 divisors, whose sum is σ = 28320612072. Its totient is φ = 28320612070.

The previous prime is 28320612059. The next prime is 28320612077. The reversal of 28320612071 is 17021602382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28320612071 - 2¹⁰ = 28320611047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28320612077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14160306035 + 14160306036.

It is an arithmetic number, because the mean of its divisors is an integer number (14160306036).

Almost surely, 2^28320612071 is an apocalyptic number.

28320612071 is a deficient number, since it is larger than the sum of its proper divisors (1).

28320612071 is an equidigital number, since it uses as much as digits as its factorization.

28320612071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 28320612071 in words is "twenty-eight billion, three hundred twenty million, six hundred twelve thousand, seventy-one".