28656234603 has 24 divisors (see below), whose sum is σ = 44279031888. Its totient is φ = 17795008512.

The previous prime is 28656234601. The next prime is 28656234611. The reversal of 28656234603 is 30643265682.

It is a happy number.

28656234603 is a `hidden beast` number, since 2 + 8 + 6 + 5 + 6 + 2 + 34 + 603 = 666.

It is not a de Polignac number, because 28656234603 - 2¹ = 28656234601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28656234601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950601 + ... + 980282.

It is an arithmetic number, because the mean of its divisors is an integer number (1844959662).

Almost surely, 2^28656234603 is an apocalyptic number.

28656234603 is a deficient number, since it is larger than the sum of its proper divisors (15622797285).

28656234603 is a wasteful number, since it uses less digits than its factorization.

28656234603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931003 (or 1931000 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 28656234603 in words is "twenty-eight billion, six hundred fifty-six million, two hundred thirty-four thousand, six hundred three".