12640414143 has 8 divisors (see below), whose sum is σ = 19261583488. Its totient is φ = 7223093784.

The previous prime is 12640414133. The next prime is 12640414147. The reversal of 12640414143 is 34141404621.

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

It is not a de Polignac number, because 12640414143 - 2⁸ = 12640413887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12640414143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12640414147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300962221 + ... + 300962262.

It is an arithmetic number, because the mean of its divisors is an integer number (2407697936).

Almost surely, 2^12640414143 is an apocalyptic number.

12640414143 is a deficient number, since it is larger than the sum of its proper divisors (6621169345).

12640414143 is an equidigital number, since it uses as much as digits as its factorization.

12640414143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601924493.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12640414143 its reverse (34141404621), we get a palindrome (46781818764).

The spelling of 12640414143 in words is "twelve billion, six hundred forty million, four hundred fourteen thousand, one hundred forty-three".