28112285699 has 2 divisors, whose sum is σ = 28112285700. Its totient is φ = 28112285698.

The previous prime is 28112285683. The next prime is 28112285701. The reversal of 28112285699 is 99658221182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28112285699 - 2⁴ = 28112285683 is a prime.

It is a Sophie Germain prime.

Together with 28112285701, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28112285699.

It is not a weakly prime, because it can be changed into another prime (28112285609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14056142849 + 14056142850.

It is an arithmetic number, because the mean of its divisors is an integer number (14056142850).

Almost surely, 2^28112285699 is an apocalyptic number.

28112285699 is a deficient number, since it is larger than the sum of its proper divisors (1).

28112285699 is an equidigital number, since it uses as much as digits as its factorization.

28112285699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 53.

The spelling of 28112285699 in words is "twenty-eight billion, one hundred twelve million, two hundred eighty-five thousand, six hundred ninety-nine".