28056124847 has 2 divisors, whose sum is σ = 28056124848. Its totient is φ = 28056124846.

The previous prime is 28056124829. The next prime is 28056124927. The reversal of 28056124847 is 74842165082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28056124847 - 2¹⁴ = 28056108463 is a prime.

It is a super-2 number, since 2×28056124847² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056114847) 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, 14028062423 + 14028062424.

It is an arithmetic number, because the mean of its divisors is an integer number (14028062424).

Almost surely, 2^28056124847 is an apocalyptic number.

28056124847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056124847 is an equidigital number, since it uses as much as digits as its factorization.

28056124847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 28056124847 in words is "twenty-eight billion, fifty-six million, one hundred twenty-four thousand, eight hundred forty-seven".