27806328037 has 2 divisors, whose sum is σ = 27806328038. Its totient is φ = 27806328036.

The previous prime is 27806327929. The next prime is 27806328059. The reversal of 27806328037 is 73082360872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26593129476 + 1213198561 = 163074^2 + 34831^2 .

It is a cyclic number.

It is not a de Polignac number, because 27806328037 - 2¹⁵ = 27806295269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27800328037) 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, 13903164018 + 13903164019.

It is an arithmetic number, because the mean of its divisors is an integer number (13903164019).

Almost surely, 2^27806328037 is an apocalyptic number.

It is an amenable number.

27806328037 is a deficient number, since it is larger than the sum of its proper divisors (1).

27806328037 is an equidigital number, since it uses as much as digits as its factorization.

27806328037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 27806328037 in words is "twenty-seven billion, eight hundred six million, three hundred twenty-eight thousand, thirty-seven".