104722585509 has 4 divisors (see below), whose sum is σ = 139630114016. Its totient is φ = 69815057004.

The previous prime is 104722585477. The next prime is 104722585549. The reversal of 104722585509 is 905585227401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 905585227401 = 3 ⋅301861742467.

It is not a de Polignac number, because 104722585509 - 2⁵ = 104722585477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104722585549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17453764249 + ... + 17453764254.

It is an arithmetic number, because the mean of its divisors is an integer number (34907528504).

Almost surely, 2^104722585509 is an apocalyptic number.

It is an amenable number.

104722585509 is a deficient number, since it is larger than the sum of its proper divisors (34907528507).

104722585509 is an equidigital number, since it uses as much as digits as its factorization.

104722585509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34907528506.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 104722585509 in words is "one hundred four billion, seven hundred twenty-two million, five hundred eighty-five thousand, five hundred nine".