380428374842657 has 2 divisors, whose sum is σ = 380428374842658. Its totient is φ = 380428374842656.

The previous prime is 380428374842587. The next prime is 380428374842687. The reversal of 380428374842657 is 756248473824083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379836361550881 + 592013291776 = 19489391^2 + 769424^2 .

It is a cyclic number.

It is not a de Polignac number, because 380428374842657 - 2¹⁰ = 380428374841633 is a prime.

It is not a weakly prime, because it can be changed into another prime (380428374842687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190214187421328 + 190214187421329.

It is an arithmetic number, because the mean of its divisors is an integer number (190214187421329).

Almost surely, 2^{380428374842657} is an apocalyptic number.

It is an amenable number.

380428374842657 is a deficient number, since it is larger than the sum of its proper divisors (1).

380428374842657 is an equidigital number, since it uses as much as digits as its factorization.

380428374842657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1734082560, while the sum is 71.

The spelling of 380428374842657 in words is "three hundred eighty trillion, four hundred twenty-eight billion, three hundred seventy-four million, eight hundred forty-two thousand, six hundred fifty-seven".