12611306899 has 4 divisors (see below), whose sum is σ = 12611582136. Its totient is φ = 12611031664.

The previous prime is 12611306863. The next prime is 12611306927. The reversal of 12611306899 is 99860311621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12611306899 - 2²⁹ = 12074435987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12611306839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50509 + ... + 166654.

It is an arithmetic number, because the mean of its divisors is an integer number (3152895534).

Almost surely, 2^12611306899 is an apocalyptic number.

12611306899 is a deficient number, since it is larger than the sum of its proper divisors (275237).

12611306899 is an equidigital number, since it uses as much as digits as its factorization.

12611306899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275236.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 12611306899 in words is "twelve billion, six hundred eleven million, three hundred six thousand, eight hundred ninety-nine".