28016312075 has 24 divisors (see below), whose sum is σ = 36349721088. Its totient is φ = 21379992480.

The previous prime is 28016312059. The next prime is 28016312099. The reversal of 28016312075 is 57021361082.

It is a happy number.

It is not a de Polignac number, because 28016312075 - 2⁴ = 28016312059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144644 + ... + 277406.

It is an arithmetic number, because the mean of its divisors is an integer number (1514571712).

Almost surely, 2^28016312075 is an apocalyptic number.

28016312075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28016312075 is a deficient number, since it is larger than the sum of its proper divisors (8333409013).

28016312075 is a wasteful number, since it uses less digits than its factorization.

28016312075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133163 (or 133158 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 28016312075 in words is "twenty-eight billion, sixteen million, three hundred twelve thousand, seventy-five".