28484224231 has 2 divisors, whose sum is σ = 28484224232. Its totient is φ = 28484224230.

The previous prime is 28484224211. The next prime is 28484224271. The reversal of 28484224231 is 13242248482.

It is an a-pointer prime, because the next prime (28484224271) can be obtained adding 28484224231 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28484224231 - 2²⁹ = 27947353319 is a prime.

It is a super-2 number, since 2×28484224231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28484224211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14242112115 + 14242112116.

It is an arithmetic number, because the mean of its divisors is an integer number (14242112116).

Almost surely, 2^28484224231 is an apocalyptic number.

28484224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

28484224231 is an equidigital number, since it uses as much as digits as its factorization.

28484224231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196608, while the sum is 40.

The spelling of 28484224231 in words is "twenty-eight billion, four hundred eighty-four million, two hundred twenty-four thousand, two hundred thirty-one".