28573898563 has 36 divisors (see below), whose sum is σ = 34691070960. Its totient is φ = 23438023392.

The previous prime is 28573898557. The next prime is 28573898569. The reversal of 28573898563 is 36589837582.

It is an interprime number because it is at equal distance from previous prime (28573898557) and next prime (28573898569).

It is not a de Polignac number, because 28573898563 - 2²⁹ = 28037027651 is a prime.

It is a super-2 number, since 2×28573898563² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28573898495 and 28573898504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573898569) 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 35 ways as a sum of consecutive naturals, for example, 82345356 + ... + 82345702.

It is an arithmetic number, because the mean of its divisors is an integer number (963640860).

Almost surely, 2^28573898563 is an apocalyptic number.

28573898563 is a deficient number, since it is larger than the sum of its proper divisors (6117172397).

28573898563 is an equidigital number, since it uses as much as digits as its factorization.

28573898563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 550 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 64.

The spelling of 28573898563 in words is "twenty-eight billion, five hundred seventy-three million, eight hundred ninety-eight thousand, five hundred sixty-three".