104850345781 has 2 divisors, whose sum is σ = 104850345782. Its totient is φ = 104850345780.

The previous prime is 104850345739. The next prime is 104850345827. The reversal of 104850345781 is 187543058401.

It is an a-pointer prime, because the next prime (104850345827) can be obtained adding 104850345781 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75290420881 + 29559924900 = 274391^2 + 171930^2 .

It is a cyclic number.

It is not a de Polignac number, because 104850345781 - 2⁹ = 104850345269 is a prime.

It is a super-2 number, since 2×104850345781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104850345701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52425172890 + 52425172891.

It is an arithmetic number, because the mean of its divisors is an integer number (52425172891).

Almost surely, 2^104850345781 is an apocalyptic number.

It is an amenable number.

104850345781 is a deficient number, since it is larger than the sum of its proper divisors (1).

104850345781 is an equidigital number, since it uses as much as digits as its factorization.

104850345781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 104850345781 in words is "one hundred four billion, eight hundred fifty million, three hundred forty-five thousand, seven hundred eighty-one".