28213086073 has 24 divisors (see below), whose sum is σ = 30862097280. Its totient is φ = 25756950240.

The previous prime is 28213086067. The next prime is 28213086089. The reversal of 28213086073 is 37068031282.

It is a de Polignac number, because none of the positive numbers 2^k-28213086073 is a prime.

It is a super-2 number, since 2×28213086073² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28213086053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6143008 + ... + 6147598.

It is an arithmetic number, because the mean of its divisors is an integer number (1285920720).

Almost surely, 2^28213086073 is an apocalyptic number.

It is an amenable number.

28213086073 is a deficient number, since it is larger than the sum of its proper divisors (2649011207).

28213086073 is a wasteful number, since it uses less digits than its factorization.

28213086073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 28213086073 in words is "twenty-eight billion, two hundred thirteen million, eighty-six thousand, seventy-three".