28831388143 has 2 divisors, whose sum is σ = 28831388144. Its totient is φ = 28831388142.

The previous prime is 28831388141. The next prime is 28831388147. The reversal of 28831388143 is 34188313882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28831388143 - 2¹ = 28831388141 is a prime.

Together with 28831388141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28831388141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14415694071 + 14415694072.

It is an arithmetic number, because the mean of its divisors is an integer number (14415694072).

Almost surely, 2^28831388143 is an apocalyptic number.

28831388143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28831388143 is an equidigital number, since it uses as much as digits as its factorization.

28831388143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 49.

The spelling of 28831388143 in words is "twenty-eight billion, eight hundred thirty-one million, three hundred eighty-eight thousand, one hundred forty-three".