12060861089 has 4 divisors (see below), whose sum is σ = 12770323524. Its totient is φ = 11351398656.

The previous prime is 12060861079. The next prime is 12060861091. The reversal of 12060861089 is 98016806021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98016806021 = 24179 ⋅4053799.

It can be written as a sum of positive squares in 2 ways, for example, as 7230611089 + 4830250000 = 85033^2 + 69500^2 .

It is a cyclic number.

It is not a de Polignac number, because 12060861089 - 2⁴ = 12060861073 is a prime.

It is a super-4 number, since 4×12060861089⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12060861019) 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, 354731192 + ... + 354731225.

It is an arithmetic number, because the mean of its divisors is an integer number (3192580881).

Almost surely, 2^12060861089 is an apocalyptic number.

It is an amenable number.

12060861089 is a deficient number, since it is larger than the sum of its proper divisors (709462435).

12060861089 is an equidigital number, since it uses as much as digits as its factorization.

12060861089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709462434.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 12060861089 in words is "twelve billion, sixty million, eight hundred sixty-one thousand, eighty-nine".