12543303717 has 48 divisors (see below), whose sum is σ = 21379018752. Its totient is φ = 6937539840.

The previous prime is 12543303709. The next prime is 12543303727. The reversal of 12543303717 is 71730334521.

12543303717 is a `hidden beast` number, since 1 + 254 + 3 + 30 + 371 + 7 = 666.

It is not a de Polignac number, because 12543303717 - 2³ = 12543303709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543303727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308923 + ... + 347159.

It is an arithmetic number, because the mean of its divisors is an integer number (445396224).

Almost surely, 2^12543303717 is an apocalyptic number.

It is an amenable number.

12543303717 is a deficient number, since it is larger than the sum of its proper divisors (8835715035).

12543303717 is a wasteful number, since it uses less digits than its factorization.

12543303717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38418 (or 38415 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 12543303717 in words is "twelve billion, five hundred forty-three million, three hundred three thousand, seven hundred seventeen".