28262418378241 has 2 divisors, whose sum is σ = 28262418378242. Its totient is φ = 28262418378240.

The previous prime is 28262418378221. The next prime is 28262418378329. The reversal of 28262418378241 is 14287381426282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15354673598016 + 12907744780225 = 3918504^2 + 3592735^2 .

It is a cyclic number.

It is not a de Polignac number, because 28262418378241 - 2¹⁹ = 28262417853953 is a prime.

It is not a weakly prime, because it can be changed into another prime (28262418378221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14131209189120 + 14131209189121.

It is an arithmetic number, because the mean of its divisors is an integer number (14131209189121).

Almost surely, 2^{28262418378241} is an apocalyptic number.

It is an amenable number.

28262418378241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28262418378241 is an equidigital number, since it uses as much as digits as its factorization.

28262418378241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16515072, while the sum is 58.

The spelling of 28262418378241 in words is "twenty-eight trillion, two hundred sixty-two billion, four hundred eighteen million, three hundred seventy-eight thousand, two hundred forty-one".