12707744647 has 8 divisors (see below), whose sum is σ = 14490279216. Its totient is φ = 11040212352.

The previous prime is 12707744591. The next prime is 12707744689. The reversal of 12707744647 is 74644770721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12707744647 - 2¹¹ = 12707742599 is a prime.

It is a super-2 number, since 2×12707744647² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12707744647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707744047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28750333 + ... + 28750774.

It is an arithmetic number, because the mean of its divisors is an integer number (1811284902).

Almost surely, 2^12707744647 is an apocalyptic number.

12707744647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12707744647 is a deficient number, since it is larger than the sum of its proper divisors (1782534569).

12707744647 is a wasteful number, since it uses less digits than its factorization.

12707744647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57501137.

The product of its (nonzero) digits is 1843968, while the sum is 49.

The spelling of 12707744647 in words is "twelve billion, seven hundred seven million, seven hundred forty-four thousand, six hundred forty-seven".