508378647137 has 2 divisors, whose sum is σ = 508378647138. Its totient is φ = 508378647136.

The previous prime is 508378647089. The next prime is 508378647193. The reversal of 508378647137 is 731746873805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327723045841 + 180655601296 = 572471^2 + 425036^2 .

It is a cyclic number.

It is not a de Polignac number, because 508378647137 - 2²⁸ = 508110211681 is a prime.

It is not a weakly prime, because it can be changed into another prime (508378647197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254189323568 + 254189323569.

It is an arithmetic number, because the mean of its divisors is an integer number (254189323569).

Almost surely, 2^508378647137 is an apocalyptic number.

It is an amenable number.

508378647137 is a deficient number, since it is larger than the sum of its proper divisors (1).

508378647137 is an equidigital number, since it uses as much as digits as its factorization.

508378647137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 508378647137 in words is "five hundred eight billion, three hundred seventy-eight million, six hundred forty-seven thousand, one hundred thirty-seven".