12909090067 has 12 divisors (see below), whose sum is σ = 13618462440. Its totient is φ = 12202760160.

The previous prime is 12909090059. The next prime is 12909090079. The reversal of 12909090067 is 76009090921.

It is not a de Polignac number, because 12909090067 - 2³ = 12909090059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12909090017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12496183 + ... + 12497215.

It is an arithmetic number, because the mean of its divisors is an integer number (1134871870).

Almost surely, 2^12909090067 is an apocalyptic number.

12909090067 is a deficient number, since it is larger than the sum of its proper divisors (709372373).

12909090067 is an frugal number, since it uses more digits than its factorization.

12909090067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674 (or 1863 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 12909090067 in words is "twelve billion, nine hundred nine million, ninety thousand, sixty-seven".