28566863467 has 16 divisors (see below), whose sum is σ = 29731828672. Its totient is φ = 27424552320.

The previous prime is 28566863441. The next prime is 28566863477. The reversal of 28566863467 is 76436866582.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28566863467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28566863477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042117 + ... + 1069177.

It is an arithmetic number, because the mean of its divisors is an integer number (1858239292).

Almost surely, 2^28566863467 is an apocalyptic number.

28566863467 is a deficient number, since it is larger than the sum of its proper divisors (1164965205).

28566863467 is a wasteful number, since it uses less digits than its factorization.

28566863467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27478.

The product of its digits is 69672960, while the sum is 61.

The spelling of 28566863467 in words is "twenty-eight billion, five hundred sixty-six million, eight hundred sixty-three thousand, four hundred sixty-seven".