28563378103 has 16 divisors (see below), whose sum is σ = 31662489600. Its totient is φ = 25601952096.

The previous prime is 28563378097. The next prime is 28563378133. The reversal of 28563378103 is 30187336582.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28563378103 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 (28563378133) 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 15 ways as a sum of consecutive naturals, for example, 106453 + ... + 261646.

It is an arithmetic number, because the mean of its divisors is an integer number (1978905600).

Almost surely, 2^28563378103 is an apocalyptic number.

28563378103 is a deficient number, since it is larger than the sum of its proper divisors (3099111497).

28563378103 is a wasteful number, since it uses less digits than its factorization.

28563378103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368286.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 28563378103 in words is "twenty-eight billion, five hundred sixty-three million, three hundred seventy-eight thousand, one hundred three".