28228498563 has 8 divisors (see below), whose sum is σ = 37751709376. Its totient is φ = 18762143400.

The previous prime is 28228498547. The next prime is 28228498583. The reversal of 28228498563 is 36589482282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28228498563 - 2⁴ = 28228498547 is a prime.

It is a super-2 number, since 2×28228498563² (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 (28228498583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14212753 + ... + 14214738.

It is an arithmetic number, because the mean of its divisors is an integer number (4718963672).

Almost surely, 2^28228498563 is an apocalyptic number.

28228498563 is a deficient number, since it is larger than the sum of its proper divisors (9523210813).

28228498563 is a wasteful number, since it uses less digits than its factorization.

28228498563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28427825.

The product of its digits is 13271040, while the sum is 57.

The spelling of 28228498563 in words is "twenty-eight billion, two hundred twenty-eight million, four hundred ninety-eight thousand, five hundred sixty-three".