12667357989 has 72 divisors (see below), whose sum is σ = 22337360640. Its totient is φ = 7086324960.

The previous prime is 12667357973. The next prime is 12667358009. The reversal of 12667357989 is 98975376621.

It is not a de Polignac number, because 12667357989 - 2⁴ = 12667357973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12667357949) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 540652 + ... + 563594.

It is an arithmetic number, because the mean of its divisors is an integer number (310241120).

Almost surely, 2^12667357989 is an apocalyptic number.

It is an amenable number.

12667357989 is a deficient number, since it is larger than the sum of its proper divisors (9670002651).

12667357989 is a wasteful number, since it uses less digits than its factorization.

12667357989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000 (or 22970 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 12667357989 in words is "twelve billion, six hundred sixty-seven million, three hundred fifty-seven thousand, nine hundred eighty-nine".