28928129999 has 2 divisors, whose sum is σ = 28928130000. Its totient is φ = 28928129998.

The previous prime is 28928129941. The next prime is 28928130031. The reversal of 28928129999 is 99992182982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28928129999 - 2⁸ = 28928129743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28928129929) 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 as a sum of consecutive naturals, namely, 14464064999 + 14464065000.

It is an arithmetic number, because the mean of its divisors is an integer number (14464065000).

Almost surely, 2^28928129999 is an apocalyptic number.

28928129999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28928129999 is an equidigital number, since it uses as much as digits as its factorization.

28928129999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30233088, while the sum is 68.

The spelling of 28928129999 in words is "twenty-eight billion, nine hundred twenty-eight million, one hundred twenty-nine thousand, nine hundred ninety-nine".