12489647039 has 4 divisors (see below), whose sum is σ = 12489871680. Its totient is φ = 12489422400.

The previous prime is 12489647029. The next prime is 12489647041. The reversal of 12489647039 is 93074698421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12489647039 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 (12489647029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39314 + ... + 162864.

It is an arithmetic number, because the mean of its divisors is an integer number (3122467920).

Almost surely, 2^12489647039 is an apocalyptic number.

12489647039 is a deficient number, since it is larger than the sum of its proper divisors (224641).

12489647039 is a wasteful number, since it uses less digits than its factorization.

12489647039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224640.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 12489647039 in words is "twelve billion, four hundred eighty-nine million, six hundred forty-seven thousand, thirty-nine".