28363255561003 has 16 divisors (see below), whose sum is σ = 32447164888800. Its totient is φ = 24554611226880.

The previous prime is 28363255561001. The next prime is 28363255561007. The reversal of 28363255561003 is 30016555236382.

It is a cyclic number.

It is not a de Polignac number, because 28363255561003 - 2¹ = 28363255561001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28363255561001) 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, 608970048 + ... + 609016621.

It is an arithmetic number, because the mean of its divisors is an integer number (2027947805550).

Almost surely, 2^{28363255561003} is an apocalyptic number.

28363255561003 is a deficient number, since it is larger than the sum of its proper divisors (4083909327797).

28363255561003 is a wasteful number, since it uses less digits than its factorization.

28363255561003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217986782.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 28363255561003 in words is "twenty-eight trillion, three hundred sixty-three billion, two hundred fifty-five million, five hundred sixty-one thousand, three".