28889509390559 has 16 divisors (see below), whose sum is σ = 30616024220928. Its totient is φ = 27166016621952.

The previous prime is 28889509390531. The next prime is 28889509390667. The reversal of 28889509390559 is 95509390598882.

It is a cyclic number.

It is not a de Polignac number, because 28889509390559 - 2⁸ = 28889509390303 is a prime.

It is a super-3 number, since 3×28889509390559³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889509390459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128466632 + ... + 128691314.

It is an arithmetic number, because the mean of its divisors is an integer number (1913501513808).

Almost surely, 2^{28889509390559} is an apocalyptic number.

28889509390559 is a deficient number, since it is larger than the sum of its proper divisors (1726514830369).

28889509390559 is a wasteful number, since it uses less digits than its factorization.

28889509390559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231374.

The product of its (nonzero) digits is 2519424000, while the sum is 80.

The spelling of 28889509390559 in words is "twenty-eight trillion, eight hundred eighty-nine billion, five hundred nine million, three hundred ninety thousand, five hundred fifty-nine".