28506688088503 has 8 divisors (see below), whose sum is σ = 29341202897072. Its totient is φ = 27675545057856.

The previous prime is 28506688088479. The next prime is 28506688088539. The reversal of 28506688088503 is 30588088660582.

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

It is a cyclic number.

It is not a de Polignac number, because 28506688088503 - 2⁵ = 28506688088471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28506688088573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842927325 + ... + 842961142.

It is an arithmetic number, because the mean of its divisors is an integer number (3667650362134).

Almost surely, 2^{28506688088503} is an apocalyptic number.

28506688088503 is a deficient number, since it is larger than the sum of its proper divisors (834514808569).

28506688088503 is a wasteful number, since it uses less digits than its factorization.

28506688088503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685888961.

The product of its (nonzero) digits is 176947200, while the sum is 67.

The spelling of 28506688088503 in words is "twenty-eight trillion, five hundred six billion, six hundred eighty-eight million, eighty-eight thousand, five hundred three".