104855690129 has 2 divisors, whose sum is σ = 104855690130. Its totient is φ = 104855690128.

The previous prime is 104855690119. The next prime is 104855690153. The reversal of 104855690129 is 921096558401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78927283600 + 25928406529 = 280940^2 + 161023^2 .

It is a cyclic number.

It is not a de Polignac number, because 104855690129 - 2²⁰ = 104854641553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (104855690119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52427845064 + 52427845065.

It is an arithmetic number, because the mean of its divisors is an integer number (52427845065).

Almost surely, 2^104855690129 is an apocalyptic number.

It is an amenable number.

104855690129 is a deficient number, since it is larger than the sum of its proper divisors (1).

104855690129 is an equidigital number, since it uses as much as digits as its factorization.

104855690129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 104855690129 in words is "one hundred four billion, eight hundred fifty-five million, six hundred ninety thousand, one hundred twenty-nine".