109065489409 has 4 divisors (see below), whose sum is σ = 109066811440. Its totient is φ = 109064167380.

The previous prime is 109065489389. The next prime is 109065489413. The reversal of 109065489409 is 904984560901.

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: 904984560901 = 29 ⋅31206364169.

It is a cyclic number.

It is not a de Polignac number, because 109065489409 - 2¹¹ = 109065487361 is a prime.

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 109065489409.

It is not an unprimeable number, because it can be changed into a prime (109065489109) 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, 528399 + ... + 705220.

It is an arithmetic number, because the mean of its divisors is an integer number (27266702860).

Almost surely, 2^109065489409 is an apocalyptic number.

It is an amenable number.

109065489409 is a deficient number, since it is larger than the sum of its proper divisors (1322031).

109065489409 is an equidigital number, since it uses as much as digits as its factorization.

109065489409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322030.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 109065489409 in words is "one hundred nine billion, sixty-five million, four hundred eighty-nine thousand, four hundred nine".