28687338599 has 2 divisors, whose sum is σ = 28687338600. Its totient is φ = 28687338598.

The previous prime is 28687338569. The next prime is 28687338601. The reversal of 28687338599 is 99583378682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28687338599 is a prime.

Together with 28687338601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28687338569) 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, 14343669299 + 14343669300.

It is an arithmetic number, because the mean of its divisors is an integer number (14343669300).

Almost surely, 2^28687338599 is an apocalyptic number.

28687338599 is a deficient number, since it is larger than the sum of its proper divisors (1).

28687338599 is an equidigital number, since it uses as much as digits as its factorization.

28687338599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 68.

The spelling of 28687338599 in words is "twenty-eight billion, six hundred eighty-seven million, three hundred thirty-eight thousand, five hundred ninety-nine".