12544840307 has 16 divisors (see below), whose sum is σ = 13264406400. Its totient is φ = 11831339520.

The previous prime is 12544840303. The next prime is 12544840309. The reversal of 12544840307 is 70304844521.

It is not a de Polignac number, because 12544840307 - 2² = 12544840303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12544840303) 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, 4592132 + ... + 4594862.

It is an arithmetic number, because the mean of its divisors is an integer number (829025400).

Almost surely, 2^12544840307 is an apocalyptic number.

12544840307 is a deficient number, since it is larger than the sum of its proper divisors (719566093).

12544840307 is a wasteful number, since it uses less digits than its factorization.

12544840307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 12544840307 in words is "twelve billion, five hundred forty-four million, eight hundred forty thousand, three hundred seven".