13456642456 has 32 divisors (see below), whose sum is σ = 25670209680. Its totient is φ = 6611472000.

The previous prime is 13456642447. The next prime is 13456642469. The reversal of 13456642456 is 65424665431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499770 + ... + 526006.

Almost surely, 2^13456642456 is an apocalyptic number.

It is an amenable number.

13456642456 is a deficient number, since it is larger than the sum of its proper divisors (12213567224).

13456642456 is a wasteful number, since it uses less digits than its factorization.

13456642456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27355 (or 27351 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 46.

The spelling of 13456642456 in words is "thirteen billion, four hundred fifty-six million, six hundred forty-two thousand, four hundred fifty-six".