28112645851 has 2 divisors, whose sum is σ = 28112645852. Its totient is φ = 28112645850.

The previous prime is 28112645837. The next prime is 28112645863. The reversal of 28112645851 is 15854621182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28112645851 - 2⁵ = 28112645819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28112645798 and 28112645807.

It is not a weakly prime, because it can be changed into another prime (28112645881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14056322925 + 14056322926.

It is an arithmetic number, because the mean of its divisors is an integer number (14056322926).

Almost surely, 2^28112645851 is an apocalyptic number.

28112645851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28112645851 is an equidigital number, since it uses as much as digits as its factorization.

28112645851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 43.

The spelling of 28112645851 in words is "twenty-eight billion, one hundred twelve million, six hundred forty-five thousand, eight hundred fifty-one".