28159919075 has 6 divisors (see below), whose sum is σ = 34918299684. Its totient is φ = 22527935240.

The previous prime is 28159918993. The next prime is 28159919083. The reversal of 28159919075 is 57091995182.

It is not a de Polignac number, because 28159919075 - 2¹⁰ = 28159918051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28159919075.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 563198357 + ... + 563198406.

It is an arithmetic number, because the mean of its divisors is an integer number (5819716614).

Almost surely, 2^28159919075 is an apocalyptic number.

28159919075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28159919075 is a deficient number, since it is larger than the sum of its proper divisors (6758380609).

28159919075 is a wasteful number, since it uses less digits than its factorization.

28159919075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126396773 (or 1126396768 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 56.

The spelling of 28159919075 in words is "twenty-eight billion, one hundred fifty-nine million, nine hundred nineteen thousand, seventy-five".