12813422456 has 8 divisors (see below), whose sum is σ = 24025167120. Its totient is φ = 6406711224.

The previous prime is 12813422443. The next prime is 12813422477. The reversal of 12813422456 is 65422431821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 800838896 + ... + 800838911.

It is an arithmetic number, because the mean of its divisors is an integer number (3003145890).

Almost surely, 2^12813422456 is an apocalyptic number.

It is an amenable number.

12813422456 is a deficient number, since it is larger than the sum of its proper divisors (11211744664).

12813422456 is a wasteful number, since it uses less digits than its factorization.

12813422456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601677813 (or 1601677809 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The spelling of 12813422456 in words is "twelve billion, eight hundred thirteen million, four hundred twenty-two thousand, four hundred fifty-six".