28528362329 has 2 divisors, whose sum is σ = 28528362330. Its totient is φ = 28528362328.

The previous prime is 28528362293. The next prime is 28528362349. The reversal of 28528362329 is 92326382582.

Together with previous prime (28528362293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28502555929 + 25806400 = 168827^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 28528362329 - 2¹⁶ = 28528296793 is a prime.

It is not a weakly prime, because it can be changed into another prime (28528362349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14264181164 + 14264181165.

It is an arithmetic number, because the mean of its divisors is an integer number (14264181165).

Almost surely, 2^28528362329 is an apocalyptic number.

It is an amenable number.

28528362329 is a deficient number, since it is larger than the sum of its proper divisors (1).

28528362329 is an equidigital number, since it uses as much as digits as its factorization.

28528362329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The spelling of 28528362329 in words is "twenty-eight billion, five hundred twenty-eight million, three hundred sixty-two thousand, three hundred twenty-nine".