28056107837 has 2 divisors, whose sum is σ = 28056107838. Its totient is φ = 28056107836.

The previous prime is 28056107803. The next prime is 28056107857. The reversal of 28056107837 is 73870165082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16317252121 + 11738855716 = 127739^2 + 108346^2 .

It is a cyclic number.

It is not a de Polignac number, because 28056107837 - 2⁸ = 28056107581 is a prime.

It is a super-2 number, since 2×28056107837² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28056107791 and 28056107800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056107857) 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, 14028053918 + 14028053919.

It is an arithmetic number, because the mean of its divisors is an integer number (14028053919).

Almost surely, 2^28056107837 is an apocalyptic number.

It is an amenable number.

28056107837 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056107837 is an equidigital number, since it uses as much as digits as its factorization.

28056107837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 28056107837 in words is "twenty-eight billion, fifty-six million, one hundred seven thousand, eight hundred thirty-seven".