104642056657 has 2 divisors, whose sum is σ = 104642056658. Its totient is φ = 104642056656.

The previous prime is 104642056601. The next prime is 104642056669. The reversal of 104642056657 is 756650246401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94352794561 + 10289262096 = 307169^2 + 101436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104642056657 is a prime.

It is not a weakly prime, because it can be changed into another prime (104642056957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52321028328 + 52321028329.

It is an arithmetic number, because the mean of its divisors is an integer number (52321028329).

Almost surely, 2^104642056657 is an apocalyptic number.

It is an amenable number.

104642056657 is a deficient number, since it is larger than the sum of its proper divisors (1).

104642056657 is an equidigital number, since it uses as much as digits as its factorization.

104642056657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 104642056657 in words is "one hundred four billion, six hundred forty-two million, fifty-six thousand, six hundred fifty-seven".