12180417709 has 4 divisors (see below), whose sum is σ = 12351972960. Its totient is φ = 12008862460.

The previous prime is 12180417673. The next prime is 12180417751. The reversal of 12180417709 is 90771408121.

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.

It is a cyclic number.

It is not a de Polignac number, because 12180417709 - 2¹¹ = 12180415661 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 (12180411709) 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, 85777519 + ... + 85777660.

It is an arithmetic number, because the mean of its divisors is an integer number (3087993240).

Almost surely, 2^12180417709 is an apocalyptic number.

It is an amenable number.

12180417709 is a deficient number, since it is larger than the sum of its proper divisors (171555251).

12180417709 is an equidigital number, since it uses as much as digits as its factorization.

12180417709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171555250.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 12180417709 in words is "twelve billion, one hundred eighty million, four hundred seventeen thousand, seven hundred nine".