12738864989 has 8 divisors (see below), whose sum is σ = 12859883520. Its totient is φ = 12617922096.

The previous prime is 12738864977. The next prime is 12738865019. The reversal of 12738864989 is 98946883721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12738864989 - 2⁴ = 12738864973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738864389) 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, 354212 + ... + 388514.

It is an arithmetic number, because the mean of its divisors is an integer number (1607485440).

Almost surely, 2^12738864989 is an apocalyptic number.

It is an amenable number.

12738864989 is a deficient number, since it is larger than the sum of its proper divisors (121018531).

12738864989 is a wasteful number, since it uses less digits than its factorization.

12738864989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37819.

The product of its digits is 41803776, while the sum is 65.

The spelling of 12738864989 in words is "twelve billion, seven hundred thirty-eight million, eight hundred sixty-four thousand, nine hundred eighty-nine".