104256771205 has 4 divisors (see below), whose sum is σ = 125108125452. Its totient is φ = 83405416960.

The previous prime is 104256771197. The next prime is 104256771247. The reversal of 104256771205 is 502177652401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20355014241 + 83901756964 = 142671^2 + 289658^2 .

It is not a de Polignac number, because 104256771205 - 2³ = 104256771197 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10425677116 + ... + 10425677125.

It is an arithmetic number, because the mean of its divisors is an integer number (31277031363).

Almost surely, 2^104256771205 is an apocalyptic number.

It is an amenable number.

104256771205 is a deficient number, since it is larger than the sum of its proper divisors (20851354247).

104256771205 is an equidigital number, since it uses as much as digits as its factorization.

104256771205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20851354246.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 104256771205 in words is "one hundred four billion, two hundred fifty-six million, seven hundred seventy-one thousand, two hundred five".