12647464351 has 4 divisors (see below), whose sum is σ = 13055447104. Its totient is φ = 12239481600.

The previous prime is 12647464337. The next prime is 12647464367. The reversal of 12647464351 is 15346474621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12647464351 - 2¹⁹ = 12646940063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12647464298 and 12647464307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647464321) 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, 203991330 + ... + 203991391.

It is an arithmetic number, because the mean of its divisors is an integer number (3263861776).

Almost surely, 2^12647464351 is an apocalyptic number.

12647464351 is a deficient number, since it is larger than the sum of its proper divisors (407982753).

12647464351 is an equidigital number, since it uses as much as digits as its factorization.

12647464351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407982752.

The product of its digits is 483840, while the sum is 43.

The spelling of 12647464351 in words is "twelve billion, six hundred forty-seven million, four hundred sixty-four thousand, three hundred fifty-one".