12988308549 has 8 divisors (see below), whose sum is σ = 17485878592. Its totient is φ = 8574805440.

The previous prime is 12988308521. The next prime is 12988308563. The reversal of 12988308549 is 94580388921.

It is a happy number.

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

It is not a de Polignac number, because 12988308549 - 2⁸ = 12988308293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12988308569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21016372 + ... + 21016989.

It is an arithmetic number, because the mean of its divisors is an integer number (2185734824).

Almost surely, 2^12988308549 is an apocalyptic number.

It is an amenable number.

12988308549 is a deficient number, since it is larger than the sum of its proper divisors (4497570043).

12988308549 is a wasteful number, since it uses less digits than its factorization.

12988308549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42033467.

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 12988308549 in words is "twelve billion, nine hundred eighty-eight million, three hundred eight thousand, five hundred forty-nine".