12061440849 has 4 divisors (see below), whose sum is σ = 16081921136. Its totient is φ = 8040960564.

The previous prime is 12061440793. The next prime is 12061440851. The reversal of 12061440849 is 94804416021.

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 not a de Polignac number, because 12061440849 - 2¹³ = 12061432657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061440869) 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, 2010240139 + ... + 2010240144.

It is an arithmetic number, because the mean of its divisors is an integer number (4020480284).

Almost surely, 2^12061440849 is an apocalyptic number.

It is an amenable number.

12061440849 is a deficient number, since it is larger than the sum of its proper divisors (4020480287).

12061440849 is an equidigital number, since it uses as much as digits as its factorization.

12061440849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020480286.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 12061440849 in words is "twelve billion, sixty-one million, four hundred forty thousand, eight hundred forty-nine".