12549266219 has 8 divisors (see below), whose sum is σ = 14342895840. Its totient is φ = 10755855936.

The previous prime is 12549266207. The next prime is 12549266293. The reversal of 12549266219 is 91266294521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12549266219 - 2¹² = 12549262123 is a prime.

It is a super-2 number, since 2×12549266219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12549466219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95117 + ... + 184785.

It is an arithmetic number, because the mean of its divisors is an integer number (1792861980).

Almost surely, 2^12549266219 is an apocalyptic number.

12549266219 is a deficient number, since it is larger than the sum of its proper divisors (1793629621).

12549266219 is an equidigital number, since it uses as much as digits as its factorization.

12549266219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109669.

The product of its digits is 466560, while the sum is 47.

The spelling of 12549266219 in words is "twelve billion, five hundred forty-nine million, two hundred sixty-six thousand, two hundred nineteen".