28645835559 has 8 divisors (see below), whose sum is σ = 41666669952. Its totient is φ = 17361112440.

The previous prime is 28645835549. The next prime is 28645835587. The reversal of 28645835559 is 95553854682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28645835559 - 2⁸ = 28645835303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28645835509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434027779 + ... + 434027844.

It is an arithmetic number, because the mean of its divisors is an integer number (5208333744).

Almost surely, 2^28645835559 is an apocalyptic number.

28645835559 is a deficient number, since it is larger than the sum of its proper divisors (13020834393).

28645835559 is a wasteful number, since it uses less digits than its factorization.

28645835559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868055637.

The product of its digits is 51840000, while the sum is 60.

The spelling of 28645835559 in words is "twenty-eight billion, six hundred forty-five million, eight hundred thirty-five thousand, five hundred fifty-nine".