12647247118 has 16 divisors (see below), whose sum is σ = 21176787456. Its totient is φ = 5615056440.

The previous prime is 12647247113. The next prime is 12647247143. The reversal of 12647247118 is 81174274621.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647247113) 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, 6683646 + ... + 6685537.

It is an arithmetic number, because the mean of its divisors is an integer number (1323549216).

Almost surely, 2^12647247118 is an apocalyptic number.

12647247118 is a deficient number, since it is larger than the sum of its proper divisors (8529540338).

12647247118 is a wasteful number, since it uses less digits than its factorization.

12647247118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13369239.

The product of its digits is 150528, while the sum is 43.

The spelling of 12647247118 in words is "twelve billion, six hundred forty-seven million, two hundred forty-seven thousand, one hundred eighteen".