104906802085 has 8 divisors (see below), whose sum is σ = 125890022520. Its totient is φ = 83924201664.

The previous prime is 104906802071. The next prime is 104906802089. The reversal of 104906802085 is 580208609401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24827989761 + 80078812324 = 157569^2 + 282982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104906802085 - 2⁷ = 104906801957 is a prime.

It is a super-2 number, since 2×104906802085² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104906802089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394059 + ... + 604231.

It is an arithmetic number, because the mean of its divisors is an integer number (15736252815).

Almost surely, 2^104906802085 is an apocalyptic number.

It is an amenable number.

104906802085 is a deficient number, since it is larger than the sum of its proper divisors (20983220435).

104906802085 is an equidigital number, since it uses as much as digits as its factorization.

104906802085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310007.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 104906802085 in words is "one hundred four billion, nine hundred six million, eight hundred two thousand, eighty-five".