28193830079 has 2 divisors, whose sum is σ = 28193830080. Its totient is φ = 28193830078.

The previous prime is 28193830057. The next prime is 28193830103. The reversal of 28193830079 is 97003839182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28193830079 - 2³² = 23898862783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28193830039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14096915039 + 14096915040.

It is an arithmetic number, because the mean of its divisors is an integer number (14096915040).

Almost surely, 2^28193830079 is an apocalyptic number.

28193830079 is a deficient number, since it is larger than the sum of its proper divisors (1).

28193830079 is an equidigital number, since it uses as much as digits as its factorization.

28193830079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 28193830079 in words is "twenty-eight billion, one hundred ninety-three million, eight hundred thirty thousand, seventy-nine".