28124098231 has 8 divisors (see below), whose sum is σ = 29232214704. Its totient is φ = 27034297920.

The previous prime is 28124098199. The next prime is 28124098253. The reversal of 28124098231 is 13289042182.

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

It is a cyclic number.

It is not a de Polignac number, because 28124098231 - 2⁵ = 28124098199 is a prime.

It is a super-2 number, since 2×28124098231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28124098531) 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, 4575910 + ... + 4582051.

It is an arithmetic number, because the mean of its divisors is an integer number (3654026838).

Almost surely, 2^28124098231 is an apocalyptic number.

28124098231 is a deficient number, since it is larger than the sum of its proper divisors (1108116473).

28124098231 is an equidigital number, since it uses as much as digits as its factorization.

28124098231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158081.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 28124098231 in words is "twenty-eight billion, one hundred twenty-four million, ninety-eight thousand, two hundred thirty-one".