28275965113 has 16 divisors (see below), whose sum is σ = 31572013824. Its totient is φ = 25103237760.

The previous prime is 28275965083. The next prime is 28275965153. The reversal of 28275965113 is 31156957282.

It is a cyclic number.

It is not a de Polignac number, because 28275965113 - 2⁹ = 28275964601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28275965153) by changing a digit.

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, 176431 + ... + 296107.

It is an arithmetic number, because the mean of its divisors is an integer number (1973250864).

Almost surely, 2^28275965113 is an apocalyptic number.

It is an amenable number.

28275965113 is a deficient number, since it is larger than the sum of its proper divisors (3296048711).

28275965113 is a wasteful number, since it uses less digits than its factorization.

28275965113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120192.

The product of its digits is 907200, while the sum is 49.

The spelling of 28275965113 in words is "twenty-eight billion, two hundred seventy-five million, nine hundred sixty-five thousand, one hundred thirteen".