28055838137 has 2 divisors, whose sum is σ = 28055838138. Its totient is φ = 28055838136.

The previous prime is 28055838091. The next prime is 28055838149. The reversal of 28055838137 is 73183855082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27898686841 + 157151296 = 167029^2 + 12536^2 .

It is a cyclic number.

It is not a de Polignac number, because 28055838137 - 2¹² = 28055834041 is a prime.

It is not a weakly prime, because it can be changed into another prime (28055832137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14027919068 + 14027919069.

It is an arithmetic number, because the mean of its divisors is an integer number (14027919069).

Almost surely, 2^28055838137 is an apocalyptic number.

It is an amenable number.

28055838137 is a deficient number, since it is larger than the sum of its proper divisors (1).

28055838137 is an equidigital number, since it uses as much as digits as its factorization.

28055838137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 28055838137 in words is "twenty-eight billion, fifty-five million, eight hundred thirty-eight thousand, one hundred thirty-seven".