12139849267 has 16 divisors (see below), whose sum is σ = 14954950080. Its totient is φ = 9596414592.

The previous prime is 12139849261. The next prime is 12139849279. The reversal of 12139849267 is 76294893121.

It is a cyclic number.

It is not a de Polignac number, because 12139849267 - 2¹¹ = 12139847219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12139849261) 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 15 ways as a sum of consecutive naturals, for example, 40773 + ... + 161065.

It is an arithmetic number, because the mean of its divisors is an integer number (934684380).

Almost surely, 2^12139849267 is an apocalyptic number.

12139849267 is a deficient number, since it is larger than the sum of its proper divisors (2815100813).

12139849267 is a wasteful number, since it uses less digits than its factorization.

12139849267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121422.

The product of its digits is 1306368, while the sum is 52.

The spelling of 12139849267 in words is "twelve billion, one hundred thirty-nine million, eight hundred forty-nine thousand, two hundred sixty-seven".