12389632079 has 32 divisors (see below), whose sum is σ = 14647931136. Its totient is φ = 10353041920.

The previous prime is 12389632069. The next prime is 12389632141. The reversal of 12389632079 is 97023698321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12389632079 - 2¹² = 12389627983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389632009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2247044 + ... + 2252550.

It is an arithmetic number, because the mean of its divisors is an integer number (457747848).

Almost surely, 2^12389632079 is an apocalyptic number.

12389632079 is a deficient number, since it is larger than the sum of its proper divisors (2258299057).

12389632079 is a wasteful number, since it uses less digits than its factorization.

12389632079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 12389632079 in words is "twelve billion, three hundred eighty-nine million, six hundred thirty-two thousand, seventy-nine".