28075881611 has 2 divisors, whose sum is σ = 28075881612. Its totient is φ = 28075881610.

The previous prime is 28075881503. The next prime is 28075881623. The reversal of 28075881611 is 11618857082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28075881611 - 2¹⁴ = 28075865227 is a prime.

It is not a weakly prime, because it can be changed into another prime (28075880611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14037940805 + 14037940806.

It is an arithmetic number, because the mean of its divisors is an integer number (14037940806).

Almost surely, 2^28075881611 is an apocalyptic number.

28075881611 is a deficient number, since it is larger than the sum of its proper divisors (1).

28075881611 is an equidigital number, since it uses as much as digits as its factorization.

28075881611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 47.

The spelling of 28075881611 in words is "twenty-eight billion, seventy-five million, eight hundred eighty-one thousand, six hundred eleven".