28241645597609 has 2 divisors, whose sum is σ = 28241645597610. Its totient is φ = 28241645597608.

The previous prime is 28241645597567. The next prime is 28241645597629. The reversal of 28241645597609 is 90679554614282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19870732675600 + 8370912922009 = 4457660^2 + 2893253^2 .

It is a cyclic number.

It is not a de Polignac number, because 28241645597609 - 2²⁰ = 28241644549033 is a prime.

It is not a weakly prime, because it can be changed into another prime (28241645597629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14120822798804 + 14120822798805.

It is an arithmetic number, because the mean of its divisors is an integer number (14120822798805).

Almost surely, 2^{28241645597609} is an apocalyptic number.

It is an amenable number.

28241645597609 is a deficient number, since it is larger than the sum of its proper divisors (1).

28241645597609 is an equidigital number, since it uses as much as digits as its factorization.

28241645597609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 261273600, while the sum is 68.

The spelling of 28241645597609 in words is "twenty-eight trillion, two hundred forty-one billion, six hundred forty-five million, five hundred ninety-seven thousand, six hundred nine".