648304030042129 has 2 divisors, whose sum is σ = 648304030042130. Its totient is φ = 648304030042128.

The previous prime is 648304030042111. The next prime is 648304030042139. The reversal of 648304030042129 is 921240030403846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444161315268225 + 204142714773904 = 21075135^2 + 14287852^2 .

It is a cyclic number.

It is not a de Polignac number, because 648304030042129 - 2¹³ = 648304030033937 is a prime.

It is not a weakly prime, because it can be changed into another prime (648304030042139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324152015021064 + 324152015021065.

It is an arithmetic number, because the mean of its divisors is an integer number (324152015021065).

Almost surely, 2^{648304030042129} is an apocalyptic number.

It is an amenable number.

648304030042129 is a deficient number, since it is larger than the sum of its proper divisors (1).

648304030042129 is an equidigital number, since it uses as much as digits as its factorization.

648304030042129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 648304030042129 in words is "six hundred forty-eight trillion, three hundred four billion, thirty million, forty-two thousand, one hundred twenty-nine".