28275696791 has 2 divisors, whose sum is σ = 28275696792. Its totient is φ = 28275696790.

The previous prime is 28275696767. The next prime is 28275696853. The reversal of 28275696791 is 19769657282.

It is an a-pointer prime, because the next prime (28275696853) can be obtained adding 28275696791 to its sum of digits (62).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28275696791 - 2²² = 28271502487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28275696751) 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, 14137848395 + 14137848396.

It is an arithmetic number, because the mean of its divisors is an integer number (14137848396).

Almost surely, 2^28275696791 is an apocalyptic number.

28275696791 is a deficient number, since it is larger than the sum of its proper divisors (1).

28275696791 is an equidigital number, since it uses as much as digits as its factorization.

28275696791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 62.

The spelling of 28275696791 in words is "twenty-eight billion, two hundred seventy-five million, six hundred ninety-six thousand, seven hundred ninety-one".