28829304231 has 96 divisors (see below), whose sum is σ = 49353507840. Its totient is φ = 14662537344.

The previous prime is 28829304227. The next prime is 28829304277. The reversal of 28829304231 is 13240392882.

It is not a de Polignac number, because 28829304231 - 2² = 28829304227 is a prime.

It is a super-2 number, since 2×28829304231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829304131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38800846 + ... + 38801588.

It is an arithmetic number, because the mean of its divisors is an integer number (514099040).

Almost surely, 2^28829304231 is an apocalyptic number.

28829304231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28829304231 is a deficient number, since it is larger than the sum of its proper divisors (20524203609).

28829304231 is an equidigital number, since it uses as much as digits as its factorization.

28829304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 28829304231 in words is "twenty-eight billion, eight hundred twenty-nine million, three hundred four thousand, two hundred thirty-one".