28012374193 has 2 divisors, whose sum is σ = 28012374194. Its totient is φ = 28012374192.

The previous prime is 28012374157. The next prime is 28012374263. The reversal of 28012374193 is 39147321082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25640976384 + 2371397809 = 160128^2 + 48697^2 .

It is a cyclic number.

It is not a de Polignac number, because 28012374193 - 2¹⁷ = 28012243121 is a prime.

It is not a weakly prime, because it can be changed into another prime (28012374893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14006187096 + 14006187097.

It is an arithmetic number, because the mean of its divisors is an integer number (14006187097).

Almost surely, 2^28012374193 is an apocalyptic number.

It is an amenable number.

28012374193 is a deficient number, since it is larger than the sum of its proper divisors (1).

28012374193 is an equidigital number, since it uses as much as digits as its factorization.

28012374193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 28012374193 in words is "twenty-eight billion, twelve million, three hundred seventy-four thousand, one hundred ninety-three".