12559749607 has 16 divisors (see below), whose sum is σ = 13273666560. Its totient is φ = 11851231392.

The previous prime is 12559749589. The next prime is 12559749613. The reversal of 12559749607 is 70694795521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12559749607 - 2¹¹ = 12559747559 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 (12559749647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6799158 + ... + 6801004.

It is an arithmetic number, because the mean of its divisors is an integer number (829604160).

Almost surely, 2^12559749607 is an apocalyptic number.

12559749607 is a deficient number, since it is larger than the sum of its proper divisors (713916953).

12559749607 is a wasteful number, since it uses less digits than its factorization.

12559749607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 12559749607 in words is "twelve billion, five hundred fifty-nine million, seven hundred forty-nine thousand, six hundred seven".