28284578107 has 2 divisors, whose sum is σ = 28284578108. Its totient is φ = 28284578106.

The previous prime is 28284578099. The next prime is 28284578129. The reversal of 28284578107 is 70187548282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28284578107 - 2³ = 28284578099 is a prime.

It is not a weakly prime, because it can be changed into another prime (28284578167) 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, 14142289053 + 14142289054.

It is an arithmetic number, because the mean of its divisors is an integer number (14142289054).

Almost surely, 2^28284578107 is an apocalyptic number.

28284578107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28284578107 is an equidigital number, since it uses as much as digits as its factorization.

28284578107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2007040, while the sum is 52.

The spelling of 28284578107 in words is "twenty-eight billion, two hundred eighty-four million, five hundred seventy-eight thousand, one hundred seven".