104855543887 has 2 divisors, whose sum is σ = 104855543888. Its totient is φ = 104855543886.

The previous prime is 104855543879. The next prime is 104855543911. The reversal of 104855543887 is 788345558401.

It is a weak prime.

It is an emirp because it is prime and its reverse (788345558401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104855543887 - 2³ = 104855543879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104855547887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52427771943 + 52427771944.

It is an arithmetic number, because the mean of its divisors is an integer number (52427771944).

Almost surely, 2^104855543887 is an apocalyptic number.

104855543887 is a deficient number, since it is larger than the sum of its proper divisors (1).

104855543887 is an equidigital number, since it uses as much as digits as its factorization.

104855543887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504000, while the sum is 58.

The spelling of 104855543887 in words is "one hundred four billion, eight hundred fifty-five million, five hundred forty-three thousand, eight hundred eighty-seven".