28614535489 has 2 divisors, whose sum is σ = 28614535490. Its totient is φ = 28614535488.

The previous prime is 28614535487. The next prime is 28614535531. The reversal of 28614535489 is 98453541682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25344640000 + 3269895489 = 159200^2 + 57183^2 .

It is a cyclic number.

It is not a de Polignac number, because 28614535489 - 2¹ = 28614535487 is a prime.

Together with 28614535487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28614535487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14307267744 + 14307267745.

It is an arithmetic number, because the mean of its divisors is an integer number (14307267745).

Almost surely, 2^28614535489 is an apocalyptic number.

It is an amenable number.

28614535489 is a deficient number, since it is larger than the sum of its proper divisors (1).

28614535489 is an equidigital number, since it uses as much as digits as its factorization.

28614535489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 55.

The spelling of 28614535489 in words is "twenty-eight billion, six hundred fourteen million, five hundred thirty-five thousand, four hundred eighty-nine".