28028003055549 has 8 divisors (see below), whose sum is σ = 42709337989440. Its totient is φ = 16016001746016.

The previous prime is 28028003055539. The next prime is 28028003055553. The reversal of 28028003055549 is 94555030082082.

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

It is not a de Polignac number, because 28028003055549 - 2²³ = 28027994666941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28028003055539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667333406064 + ... + 667333406105.

It is an arithmetic number, because the mean of its divisors is an integer number (5338667248680).

Almost surely, 2^{28028003055549} is an apocalyptic number.

It is an amenable number.

28028003055549 is a deficient number, since it is larger than the sum of its proper divisors (14681334933891).

28028003055549 is a wasteful number, since it uses less digits than its factorization.

28028003055549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334666812179.

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 28028003055549 in words is "twenty-eight trillion, twenty-eight billion, three million, fifty-five thousand, five hundred forty-nine".