28616750849 has 2 divisors, whose sum is σ = 28616750850. Its totient is φ = 28616750848.

The previous prime is 28616750831. The next prime is 28616750917. The reversal of 28616750849 is 94805761682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28580269249 + 36481600 = 169057^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 28616750849 - 2²⁰ = 28615702273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28616750794 and 28616750803.

It is not a weakly prime, because it can be changed into another prime (28616750249) 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, 14308375424 + 14308375425.

It is an arithmetic number, because the mean of its divisors is an integer number (14308375425).

Almost surely, 2^28616750849 is an apocalyptic number.

It is an amenable number.

28616750849 is a deficient number, since it is larger than the sum of its proper divisors (1).

28616750849 is an equidigital number, since it uses as much as digits as its factorization.

28616750849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 28616750849 in words is "twenty-eight billion, six hundred sixteen million, seven hundred fifty thousand, eight hundred forty-nine".