28595374617529 has 2 divisors, whose sum is σ = 28595374617530. Its totient is φ = 28595374617528.

The previous prime is 28595374617527. The next prime is 28595374617617. The reversal of 28595374617529 is 92571647359582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28248406495929 + 346968121600 = 5314923^2 + 589040^2 .

It is a cyclic number.

It is not a de Polignac number, because 28595374617529 - 2¹ = 28595374617527 is a prime.

Together with 28595374617527, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28595374617527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14297687308764 + 14297687308765.

It is an arithmetic number, because the mean of its divisors is an integer number (14297687308765).

Almost surely, 2^{28595374617529} is an apocalyptic number.

It is an amenable number.

28595374617529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28595374617529 is an equidigital number, since it uses as much as digits as its factorization.

28595374617529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072000, while the sum is 73.

The spelling of 28595374617529 in words is "twenty-eight trillion, five hundred ninety-five billion, three hundred seventy-four million, six hundred seventeen thousand, five hundred twenty-nine".