28854571589 has 2 divisors, whose sum is σ = 28854571590. Its totient is φ = 28854571588.

The previous prime is 28854571567. The next prime is 28854571601. The reversal of 28854571589 is 98517545882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28445520964 + 409050625 = 168658^2 + 20225^2 .

It is a cyclic number.

It is not a de Polignac number, because 28854571589 - 2²⁴ = 28837794373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28854501589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14427285794 + 14427285795.

It is an arithmetic number, because the mean of its divisors is an integer number (14427285795).

Almost surely, 2^28854571589 is an apocalyptic number.

It is an amenable number.

28854571589 is a deficient number, since it is larger than the sum of its proper divisors (1).

28854571589 is an equidigital number, since it uses as much as digits as its factorization.

28854571589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256000, while the sum is 62.

The spelling of 28854571589 in words is "twenty-eight billion, eight hundred fifty-four million, five hundred seventy-one thousand, five hundred eighty-nine".