104810009581 has 4 divisors (see below), whose sum is σ = 108190977664. Its totient is φ = 101429041500.

The previous prime is 104810009489. The next prime is 104810009621. The reversal of 104810009581 is 185900018401.

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: 185900018401 = 53 ⋅3507547517.

It is a cyclic number.

It is not a de Polignac number, because 104810009581 - 2¹³ = 104810001389 is a prime.

It is a super-2 number, since 2×104810009581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104810009581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104810009281) 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, 1690483995 + ... + 1690484056.

It is an arithmetic number, because the mean of its divisors is an integer number (27047744416).

Almost surely, 2^104810009581 is an apocalyptic number.

It is an amenable number.

104810009581 is a deficient number, since it is larger than the sum of its proper divisors (3380968083).

104810009581 is an equidigital number, since it uses as much as digits as its factorization.

104810009581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380968082.

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 104810009581 in words is "one hundred four billion, eight hundred ten million, nine thousand, five hundred eighty-one".