28316288375 has 16 divisors (see below), whose sum is σ = 35451680160. Its totient is φ = 22580625600.

The previous prime is 28316288347. The next prime is 28316288393. The reversal of 28316288375 is 57388261382.

It is a happy number.

It is not a de Polignac number, because 28316288375 - 2¹² = 28316284279 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 322745 + ... + 400994.

It is an arithmetic number, because the mean of its divisors is an integer number (2215730010).

Almost surely, 2^28316288375 is an apocalyptic number.

28316288375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28316288375 is a deficient number, since it is larger than the sum of its proper divisors (7135391785).

28316288375 is an equidigital number, since it uses as much as digits as its factorization.

28316288375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724067 (or 724057 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The spelling of 28316288375 in words is "twenty-eight billion, three hundred sixteen million, two hundred eighty-eight thousand, three hundred seventy-five".