12657784814 has 8 divisors (see below), whose sum is σ = 18989696160. Its totient is φ = 6327886096.

The previous prime is 12657784813. The next prime is 12657784829. The reversal of 12657784814 is 41848775621.

12657784814 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12657784813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487334 + ... + 512649.

It is an arithmetic number, because the mean of its divisors is an integer number (2373712020).

Almost surely, 2^12657784814 is an apocalyptic number.

12657784814 is a deficient number, since it is larger than the sum of its proper divisors (6331911346).

12657784814 is an equidigital number, since it uses as much as digits as its factorization.

12657784814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006314.

The product of its digits is 3010560, while the sum is 53.

The spelling of 12657784814 in words is "twelve billion, six hundred fifty-seven million, seven hundred eighty-four thousand, eight hundred fourteen".